The Central Atlantic Ocean formed around 200 million years ago, the South Atlantic Ocean formed around 130 million years ago, and the North Atlantic Ocean formed around 30 million years ago.
How old is the Atlantic Ocean?The supercontinent known as Pangaea experienced a rift that appeared around 150 million years ago. Along the submerged Mid-Atlantic Ridge, new crust formed.
This alteration caused Pangaea to fragment, creating the Atlantic Ocean in the process. Before 1492, the Atlantic Ocean was divided into two separate hemispheres: North and South America and Europe, Asia, and Africa.
Notwithstanding Norse colonies in Newfoundland & North America, as well as legends of Prince Madoc's Welsh and Irish expeditions. Its border is defined by the 20° East meridian, which extends south through Cape Agulhas to Antarctica. Under the 1953 description, it reaches all the way to Antarctica, although on later maps, the Southern Ocean defines its southern boundary at the 60th parallel.
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describes the tendency for different types of rock to weather at different rates.
The tendency for different types of rock to weather at different rates is known as differential weathering. This phenomenon occurs due to the varying physical and chemical properties of different rocks.
For example, rocks with a greater porosity and permeability are more likely to absorb water, leading to faster weathering.
In contrast, rocks with low porosity and permeability will not absorb water easily and therefore weather more slowly. Other factors that can influence the rate of weathering include the type of minerals that the rock is composed of and the climate in which it is located. Differential weathering affects the landscape, often leading to the formation of distinctive features such as mesas and canyons.
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at night, the air above the mountain slopes and drains into the warm valley below, creating a .
At night, a process called radiation cooling causes the air on the mountain slopes to cool more quickly than in the valley below. This creates a temperature inversion, where the air temperature at the top of the mountain is cooler than at the base.
The temperature inversion also has other effects, such as creating a stable layer of air that traps pollutants near the ground and limits visibility. Additionally, the process helps to distribute moisture more evenly throughout the environment.
This is a vital part of many mountain ecosystems, and an important factor to consider when studying climate patterns and air quality in mountainous areas.
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the soil horizon containing only organic material is the a horizon. b horizon. c horizon. o horizon. e horizon.
The soil horizon containing only organic material is the O horizon.
What is the O horizon?
The O horizon, which is the soil layer containing the most organic matter, is also known as the organic layer. The organic layer includes both live and dead plant roots and decomposed plant and animal residues.
This horizon can be very thin in some soils or as much as several meters thick in some organic soils. Because of its abundance of organic matter, the O horizon is often dark in color and has a spongy texture. This soil layer is sometimes known as the surface layer.The O horizon is found in soils that have experienced natural soil formation over a long period of time. The development of this layer of soil is affected by a variety of factors, including climate, vegetation, and the underlying bedrock, which all play a role in soil development. The soil's pH level and other chemical properties can also affect the amount of organic matter present in the O horizon. Additionally, human activity can affect the development and composition of this soil layer.
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basalt is an igneous rock that can be found in which volcanic environment?group of answer choicesmid-ocean ridge volcanismhot spot volcanismsubduction zone volcanism
Basalt is an igneous rock that is most commonly found in volcanoes that form due to subduction zone volcanism.
Subduction zone volcanism is a type of volcanism occurs when one of the Earth's tectonic plates moves beneath another and sinks into the mantle. As the two plates grind against each other, the pressure causes magma to rise up through the lithosphere, forming a volcano.
Basalt is composed of minerals like pyroxene, plagioclase, and olivine, and it forms from the cooling and solidification of lava that is created when the magma rises and erupts. Basalt is one of the most common volcanic rocks and is often used to construct structures such as roads, pathways, and buildings.
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A stream or river is a body of water flowing in a __________.
A stream or river is a body of water flowing in a channel.
A stream is a small river that can be crossed by wading or hopping from one bank to the other. If the stream is fed by underground water sources or has a large volume of water, it might be deep enough to require a bridge. The water in a stream or river usually flows downhill due to gravity, but it may also flow from high to low pressure or from an area of high elevation to one of lower elevation.
The movement of a river is aided by the slope of the ground, the size and position of rocks and other debris in its bed, and the amount and speed of water in the river. The soil composition and the landscape through which it flows will also influence the river's flow. The banks of a river or stream are often eroded by the water's movement, and the water may transport soil, rocks, and other debris downstream. This process aids in the formation of canyons, gorges, and other geologic formations.
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what type of weather product allows meteorologists to visualize the vertical structure of fronts, clouds, and jetstreams?
The type of weather product that allows meteorologists to visualize the vertical structure of fronts, clouds, and jetstreams is called a Skew-T diagram. Skew-T diagrams are used to identify temperature and wind profiles in the atmosphere, helping meteorologists to make more accurate predictions about upcoming weather conditions. The diagram includes a set of lines that represent the environmental lapse rate, dry adiabatic lapse rate, and the saturation mixing ratio lines.
A Skew-T diagram is a type of graph used in meteorology to display the vertical profile of temperature, dew point, and wind in the atmosphere. It is called a "skew-T" because the temperature axis is skewed or tilted relative to the vertical axis, which allows for a larger temperature range to be displayed on the graph.
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what does the existence of machu picchu suggest about the power of the inca king?
The existence of Machu Picchu suggests that the Inca king or emperor, Pachacuti Inca Yupanqui, had significant power and resources at his disposal. Machu Picchu is an ancient Inca citadel located in the Andes Mountains of Peru
It is thought to have been constructed in the middle of the 15th century as a royal estate for Pachacuti Inca Yupanqui. It is reasonable to assume that the Inca king had the strength and authority to command the necessary materials and labor force given the amount of labor, resources, and organization required to build such a monumental and elaborate structure in a remote and inaccessible location. Additionally, Machu Picchu's strategic location, with a view of the Urubamba River Valley, may have represented Inca power and control over the neighboring lands symbolically.
However, it's important to note that there are still many unanswered questions about the function and significance of Machu Picchu, and historians continue to disagree about its exact place in Inca politics and society.
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Match the damage to a house to the correct Fuijita scale classification.1. F32. F13. F54. F0___ roof damage___ wall collapse___ house blown away___ little damage
The match of the damage to a house to the correct Fujita scale classification is given below:
F1 roof damage
F3 wall collapse
F5 house blown away
F0 little damage
The Fujita scale is used to categorize tornadoes based on the intensity of the tornado.
The Fujita scale is a classification system for measuring the intensity of tornadoes based on the damage they cause to buildings and vegetation. The Fujita Scale was designed in 1971 by Ted Fujita, a professor at the University of Chicago, and was first used in the United States in 1973. The scale ranges from F0 (weakest) to F5 (strongest).
The reason for the matching is the level of damage associated with each Fujita scale category. The higher the number, the more severe the damage. Here's the explanation:
F0: Little damage (light damage to trees, signs, and buildings;)
F1: Roof damage (moderate damage to roofs, windows, and vehicles)
F3: Wall collapse (severe damage to walls, roofs, and large trees)
F5: House has blown away (total destruction of houses and buildings)
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identify the false statement. the rock cycle indicates that: group of answer choices sedimentary rock cannot form from other sedimentary rocks because the pathway is always from one rock type to a different rock type. in order to make a metamorphic rock, burial and/or heating are needed. a granite that was eroded, transported, and then deposited would eventually become a sedimentary rock. input of new melt from the crust enters the rock cycle as an igneous rock.
The false statement is that in order to make a metamorphic rock, burial and/or heating are needed. This is false because metamorphic rock can also form from other metamorphic rocks, and does not necessarily require burial and/or heating.
Metamorphic rocks are formed when existing rocks are exposed to extreme temperature and pressure, which can occur either deep within the earth or near the surface. When existing metamorphic rocks experience these extreme conditions, they can change into different metamorphic rocks, without requiring burial or heating.
This shows that the pathway of the rock cycle is not always from one rock type to another, but can also be from one rock type to the same rock type. For example, a granite that was eroded, transported, and then deposited would eventually become a sedimentary rock.
This sedimentary rock could then undergo metamorphism and be changed into a metamorphic rock, without requiring burial and/or heating. This is an example of how the rock cycle indicates that sedimentary rocks can form from other sedimentary rocks.
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The Phoenician script differs from other ancient scripts like Linear-A, Cuneiform and Hieroglyphs in thatA. it is alphabetic, meaning that each character represents a letter rather than a syllable or word.B. it is pictorial, meaning that each character represents a concept.C. it is cursive, meaning that the letters are joined together.D. it is syllabic, meaning that each character denotes a syllable O Sicily
The Phoenician script differs from other ancient scripts like Linear-A, Cuneiform and Hieroglyphs in that it is alphabetic, meaning that each character represents a letter rather than a syllable or word. Therefore, the correct answer is option A.
The Phoenician script was developed in the ancient city-state of Phoenicia, which is now Lebanon. It was one of the earliest writing systems and was used to write the Phoenician language. The script was also adapted by other languages, such as Hebrew and Aramaic.
Unlike pictorial scripts like hieroglyphs, which used pictures to represent concepts, the Phoenician script used letters to represent sounds. This made it a more efficient system for recording language. The Phoenician script was also different from cursive scripts like Linear-A, which were written in a flowing, connected style. Therefore, the correct answer is option A.
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________ are comprised of members from different geographic areas assembled as needed to collaborate on a certain project.a) work groupsb) virtual teamsc) non-core teamsd) task forcese) command groups
Task Forces are comprised of members from different geographic areas assembled as needed to collaborate on a certain project. The answer is (d) task forces.
Task forces are temporary teams that are created to work on a specific project or problem. They are composed of individuals who have different skill sets and come from different geographic areas within an organization. Task forces can be established for a variety of purposes such as developing a new product, improving a process, or resolving a crisis. Once the task is completed, the team is dissolved.
The members of the task force return to their previous roles within the organization. Task forces are often used in organizations to leverage expertise from various parts of the organization and to ensure that critical issues are addressed in a timely and effective manner. They are a useful way to bring together diverse perspectives and talents to achieve a specific objective.
Therefore, the correct answer is (d) task forces.
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the pelagic zone is best defined by which option? responses all the open water of the ocean all the open water of the ocean the benthic zone only the benthic zone only the deep ocean the deep ocean the intertidal zone only
The pelagic zone is best defined by "all the open water of the ocean." Therefore the correct option is option A.
The pelagic zone is the area in the ocean that is not connected to the seafloor, and is thus sometimes referred to as the "open ocean." The pelagic zone is defined by all the open water of the ocean, which is often separated into vertical zones by depth, depending on light levels, temperature, and other physical variables.
The epipelagic zone, the mesopelagic zone, the bathypelagic zone, and the abyssopelagic zone are the four layers of the pelagic zone that exist. There is less life in the open pelagic zone than in shallower waters, and it is difficult for marine animals to survive there because they have to fight the constant movement of the ocean.
Despite the harshness of the open ocean, a diverse array of sea creatures exist there, ranging from small planktonic organisms to large marine mammals. Therefore the correct option is option A.
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The pelagic zone is best defined by which option? responses
all the open water of the ocean the benthic zone only the deep ocean the intertidal zone onlydescribe what contours on a topographic map represent and how to contour spacing indicates the steepness of a slope.
Contours on a topographic map represent the elevation of a landscape. Contour lines are drawn at regular intervals, and the spacing between each line indicates the steepness of the slope.
Closer-spaced contours indicate a steeper slope, while wider-spaced contours represent a more gradual slope. Contours can also be drawn in different patterns, such as concentric circles, double lines, or parallel lines. This allows for more detail in the elevation of the terrain.
Contours are a useful tool for visualizing the shape of a landscape and allowing for more accurate navigation. It is also a useful tool for determining potential hazards and areas of potential flooding. Contours on a map make it easier to identify natural features such as ravines, cliffs, valleys, and ridges.
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the richter magnitude of an earthquake is determined from the .group of answer choicesintensity of the earthquakearrival time of p and s wavesarrival time of p and surface wavesduration of the earthquake
The Richter magnitude of an earthquake is determined from the arrival time of P and S waves. Therefore the correct option is option B.
The Richter magnitude scale is a measure of an earthquake's size that assigns a single number to the amount of seismic energy released. Earthquakes are classified according to their magnitude, and the Richter magnitude scale is one of several scales used to do so. The Richter scale was developed by Charles F.
Richter, an American seismologist. The Richter scale, which ranges from 1 to 10, is a logarithmic scale.
Therefore, each whole number increase in magnitude represents a tenfold increase in seismic energy. To summarize, the Richter magnitude of an earthquake is determined from the arrival time of P and S waves.
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The Richter magnitude of an earthquake is determined from the .group of answer choices
intensity of the earthquakearrival time of p and s wavesarrival time of p and surface wavesduration of the earthquakebriefly explain why a permanent temperature inversion (temperature increases with height) occurs throughout stratosphere
A permanent temperature inversion, in which temperature increases with height, occurs throughout the stratosphere because of the presence of ozone in the stratosphere.
The absorption of ultraviolet radiation by ozone causes the stratosphere to be heated. Due to the high temperatures of the stratosphere, the temperature increases with increasing altitude.
Additionally, the stratosphere is relatively dry, with little to no water vapor to absorb or emit heat, contributing to the permanent temperature inversion.
A permanent temperature inversion layer in the stratosphere helps to stabilize the atmosphere and prevent vertical mixing between the stratosphere and the troposphere below. This plays an important role in regulating our climate, as it helps to maintain the atmospheric conditions necessary for life on Earth. By preventing mixing, the temperature inversion layer helps to keep the troposphere cooler and drier than the stratosphere, which can have significant impacts on weather patterns and the overall climate system.
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of the three water potentials that make up total soil-water potential, which one would be most affected by compaction?
Of the three water potentials that make up total soil-water potential Compaction affects matric potential.
The hydraulic potential, the gravitational potential, and the matric potential are the three water potentials that contribute to the total soil-water potential.
Matric potential is the most affected by compaction.
Compaction has a negative impact on the overall structure of the soil. This can lead to a reduction in water and nutrient availability to plants. In a compacted soil, there is a reduction in pore space, and the particles are closer together.
The reduced pore space means that the matric potential is affected the most by compaction.
The matric potential of soil is the energy that holds water molecules in the soil against gravity. The matric potential increases as the pore size decreases, making it more difficult for water to move through the soil.
This can result in soil drying out faster and nutrient deficiencies as the roots are not able to access the available water and nutrients.
Soil compaction can occur when the soil is compressed by natural or human-made processes, reducing the pore space between soil particles.
As a result, the soil's ability to retain water decreases, and the matric potential becomes more negative. This negative potential makes it more difficult for plant roots to extract water from the soil, which can lead to decreased plant growth and yield.
Thus, soil compaction can significantly affect the matric potential and, therefore, the ability of plants to access water in the soil.
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relative to the fundamental themes of geography, the grand canyon is best described within which of the five themes?
Relative to the fundamental themes of geography, the Grand Canyon is best described within the theme of "physical geography".
The five fundamental themes of geography are Location, Place, Human-Environment Interaction, Movement, and Regions. These themes are used to describe and understand the physical and human aspects of the world around us.
Let's understand how the Grand Canyon is best described within the fundamental themes of geography:
Location: The location of the Grand Canyon is important to its understanding, but it does not fall within this theme.
Place: The Grand Canyon is a unique place, but it does not fall within this theme as well.
Human-Environment Interaction: The Grand Canyon is formed by the Colorado River and various geological processes. Its formation and how humans have interacted with it over time is best described within this theme.
Movement: The Grand Canyon is not particularly relevant to the movement of people, goods, or ideas, so it does not fall within this theme.
Regions: The Grand Canyon is located within the Southwest region of the United States. It is an important part of this region, but does not fall within this theme.
Therefore, we can conclude that the Grand Canyon is best described within the theme of "physical geography". Physical geography is a branch of geography that studies the natural features of the Earth's surface.
The Grand Canyon is a prominent example of physical geography due to its unique geology and the physical processes that have shaped it over millions of years.
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when going from a 5 to a 6 on the richter scale, what is the increase in amplitude of seismic waves?
a. 1 times
b. 2 times
c. 10 times
d. 32 times
When going from a 5 to a 6 on the Richter scale, the increase in amplitude of seismic waves is 10 times.
This means that a magnitude 6 earthquake produces seismic waves with ten times more amplitude than a magnitude 5 earthquake. The Richter scale is a logarithmic scale, which means that each whole number increase represents a tenfold increase in the amplitude of the seismic waves. For example, a magnitude 7 earthquake produces waves with 100 times more amplitude than a magnitude 5 earthquake, while a magnitude 8 earthquake produces waves with 1,000 times more amplitude than a magnitude 5 earthquake, and so on.
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compaction and cementation are two common processes of erosion. transportation. deposition. lithification.
Compaction and cementation are two processes involved in lithification, which is the process of turning sediment into sedimentary rock. Compaction is the process by which sediment grains are pressed together due to the weight of overlying material.
The overlying material can be either water or other sediment, and compaction is the main process that creates sedimentary rocks. Cementation is the process by which sediment grains become bound together by the precipitation of mineral cement.
This cement is usually some form of calcium carbonate, such as calcite, and it helps to solidify and bind sediment grains together. Compaction and cementation are important processes for creating sedimentary rocks, and they occur along with other processes such as erosion, transportation, and deposition. Together, these processes are responsible for the formation of sedimentary rocks, which are some of the most common rocks found on Earth.
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in an area of known past glaciation, and knowing what we have studied so far, hummocky topography most often results from
In an area of known past glaciation, hummocky topography most often results from debris deposited by melting glaciers.
Hummocky topography is a surface feature created when a glacier melts and recedes, leaving behind a series of small hills and valleys. This topography is formed when the glacier pushes rocks, soil, and other debris forward as it moves, creating a bumpy surface. As the glacier melts, the debris is left behind and forms these hummocks and mounds. In areas of known past glaciation, hummocky topography is one of the most common features that remain.
A hummock is a small hillock, knoll, or mound. A hummocky topography is one that contains such little hills and mounds. This condition usually results from ice movements and melting, as it can cause landmasses to rise, shift and reshape. Similarly, the hummocky topography that arises from glacial debris results from the material, including boulders, rocks, gravel, and sand, that was deposited by melting glaciers.
The debris is sorted based on its size, with larger rocks at the top and finer debris at the bottom. The hummocks are formed by the melting of the smaller debris, while the larger rocks are left behind as hillocks. These features are common in regions that were once under glaciers, as the melting and erosion of the ice left behind these deposits.
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which of the pre-columbian sites below is located in south america? palenque tikal tiwanaku teotihuacan
Teotihuacan is the pre-columbian archaeological site located in Central Mexico, in the State of Mexico, that was built around 100 BC. It is widely accepted that Teotihuacan was one of the most influential cities of the ancient Americas and one of the largest cities in the world during its prime.
It is the most visited archaeological site in Mexico and is a UNESCO World Heritage Site. Teotihuacan was the largest city in the pre-Columbian Americas, with an estimated population of 200,000 people at its peak. Palenque, Tikal, and Tiwanaku are all pre-Columbian archaeological sites located in Mesoamerica, Central America, and South America, respectively.
Teotihuacan is located in Central Mexico, about 40 miles (64 km) northeast of modern-day Mexico City. Its layout and architecture have been influenced by several different cultures, including the Maya, Zapotec, and Toltec civilizations. The city is laid out in a grid pattern with broad plazas and avenues connecting the various pyramids, palaces, and temples.
Teotihuacan is famous for its monumental architecture, especially the two large pyramids of the Sun and Moon. It is also renowned for its extensive mural and sculptural artwork, and its archaeological record is one of the most important sources of information about ancient Mesoamerican civilizations.
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which of the following is not a low-latitude climate region? mansoon wet equatorial dry tropical tropical savanna humid subtropical
Answer: A low latitude climate is a tropical climate, exemplified by areas in or near the equator.
A storage site for high-level radioactive waste would have all of the following features except: isolated from major population centers. geological stability. no contact with groundwater. near volcanic activity where waste can be destroyed by high temperatures. no contact with flowing water or air movement.
A storage site for high-level radioactive waste would have all of the following features except being near volcanic activity where waste can be destroyed by high temperatures. The correct option is option D (near volcanic activity where waste can be destroyed by high temperatures).
A storage site for high-level radioactive waste would have all of the following features except being near volcanic activity where waste can be destroyed by high temperatures. A storage site for high-level radioactive waste would have to have the following features:
• Isolated from major population centers.
• Geological stability.
• No contact with groundwater.
• No contact with flowing water or air movement.
High-level radioactive waste is highly hazardous, and it could cause catastrophic results if it were to be released into the environment. As a result, storage facilities must be built in such a way that they can securely contain high-level radioactive waste. They must be situated away from significant population centers to prevent exposure to large groups of people.
They must also be geologically stable, which means they must be constructed on a site that has not experienced tectonic activity for a long period of time. There should be no contact with groundwater to prevent the release of contaminants into the environment. Finally, there should be no contact with flowing water or air movement. The correct option is option D (near volcanic activity where waste can be destroyed by high temperatures).
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which element is found in greater amounts in low viscosity magma, than in high viscosity magma? question 12 options: a) si b) fe
Si (Silica) is found in greater amounts in low viscosity magma, than in high viscosity magma. Option A is correct answer.
High silica content magmas will consequently show higher levels of polymerization and have higher viscosities than magmas with low silica concentration. A substance's viscosity is a measurement of its consistency. A substance's viscosity is defined as its capacity to resist flow. Viscosity is, in some ways, the inverse of fluidity. Because cold molasses is less fluid than water, it has a greater viscosity.
The temperature, composition, and gas concentration of a magma all influence its viscosity. The relationship between temperature and viscosity is self-evident. The greater the temperature, like with most liquids, the more fluid the material becomes, reducing its viscosity.
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mapping does not: group of answer choices provide a baseline against which to measure the impact of improvement efforts. define the boundaries of a process. provide a detailed view of all elements external to the process. create a common understanding of the content of a process.
Mapping does not provide a detailed view of all elements external to the process. Therefore the correct option is option C.
Mapping is a representation of something on paper that is simplified or reduced to its essential characteristics. Mapping is the process of graphically portraying the entire business process to give a visual perspective of how it functions in practice.
The advantages of Mapping are as follows: Maps can be used to simplify complicated concepts or interactions. Maps can assist in the detection of mistakes or improvement areas. Maps provide a clear picture of who is involved, what they do, and how their work connects to the rest of the organization.
Maps help to create a shared understanding and language. A baseline is a reference point or a standard against which something can be assessed or measured. Mapping does not provide a detailed view of all elements external to the process. Therefore the correct option is option C.
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mapping does not: group of answer choices
provide a baseline against which to measure the impact of improvement efforts. define the boundaries of a process. provide a detailed view of all elements external to the process. create a common understanding of the content of a process.A __________ is a barren area of land where little precipitation occurs, and living conditions are hostile for plant and animal life.
A desert is a barren area of land where little precipitation occurs, and living conditions are hostile for plant and animal life.
A desert is a dry biome that receives very little precipitation, making it difficult for life to thrive there. Deserts are found all over the world, and they can range in temperature from extremely hot to extremely cold, depending on their location. There are four types of deserts based on their location and climate, which are hot and dry, semiarid, coastal, and cold. Some examples of deserts include the Sahara in North Africa, the Arabian Desert in the Middle East, and the Mojave Desert in the southwestern United States.
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choose the statement that best describes foliation. choose one: a. the texture typical of all metamorphic rocks b. an arrangement of mineral grains such that most are of the same size and shape c. an alignment of mineral grains perpendicular to the direction of compression d. an alignment of mineral grains parallel to the direction of compression
Answer:
d. An alignment of mineral grains parallel to the direction of compression describes foliation.
Explanation:
Foliation is a characteristic feature of many metamorphic rocks, and it refers to the alignment of mineral grains or other constituents in parallel planes or layers. This alignment is typically a result of the application of directed pressure or compression during the metamorphic process, which causes the mineral grains to flatten and orient in the same direction. The resulting texture can give the rock a layered or banded appearance and can also affect its physical properties such as its strength and cleavage.
Put the stages of solar system formation in order chronologically, where "1" means it happened first and "5" means it happend last.
- 1. 2. 3. 4. 5.
Proto-Sun’s heat bakes disk, establisning oxide, soot, and frost lines.
- 1. 2. 3. 4. 5.
Planets encounter instabilities and migrate (change orbits).
- 1. 2. 3. 4. 5.
Collapsing gas cloud forms a disk shape.
- 1. 2. 3. 4. 5.
Planets begin growing from grains and planetessimals.
- 1. 2. 3. 4. 5.
Solar fusion "turns on" and blows away the gas via the solar wind.
How did Earth get most of its water?
a. Some icy bodies were formed inside the frost line, despite the heat.
b. Asteroid collisions on Jupiter blasted icy bodies into the inner Solar System.
c. It was bombarded with icy objects deflected into the inner Solar System soon after its formation.
d. It formed just outside the frost line and later migrated to its present orbit under the influence of Jupiter.
Typos and irrelevant parts of the question should be ignored. Put the stages of solar system formation in order chronologically, where "1" means it happened first and "5" means it happened last.
The correct order of the stages of solar system formation in order chronologically is given below:
1. Collapsing gas cloud forms a disk shape.
2. Proto-Sun’s heat bakes disk, establishing oxide, soot, and frost lines.
3. Planets begin growing from grains and planetesimals.
4. Planets encounter instabilities and migrate (change orbits).
5. Solar fusion "turns on" and blows away the gas via the solar wind.
It was bombarded with icy objects deflected into the inner Solar System soon after its formation is how Earth got most of its water. The correct option is C. It was bombarded with icy objects deflected into the inner Solar System soon after its formation.
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a spinel found in metamorphic rock or an aquamarine found within a pegmatite are examples of what type of deposit
A spinel found in metamorphic rock or an aquamarine found within a pegmatite are examples of hydrothermal deposits.
What are hydrothermal deposits?
Hydrothermal deposits are rocks containing mineral deposits that originated from hot water (hydrothermal) fluids circulating in the Earth's crust.
Hot water deposits often contain significant quantities of minerals, which are usually accompanied by the alteration of the surrounding rock. The hot water that makes up these deposits is generated by heat from the Earth's core, which is transferred through the mantle to the Earth's crust.
When the water is heated, it is driven to the Earth's surface, where it flows through cracks and fissures in the rock.
The water then cools, and minerals precipitate out of the solution, forming hydrothermal deposits. There are various types of hydrothermal deposits, including gold, silver, copper, zinc, and lead deposits, among others.
These deposits are commonly found in areas where tectonic plates meet, and the Earth's crust is being pushed and pulled in various directions.
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where is light penetration in a river or stream likely to be lowest? a. the source b. the mouth c. the middle portion d. none of the above please select the best answer from the choices provided a b c d
Light penetration in a river or stream is likely to be lowest at the middle portion. The correct option is C.
This is because the middle portion of a river or stream is typically the deepest and has the most sediment, which can block out or reduce the amount of light that penetrates the water.
Additionally, the middle portion is often where the greatest amount of currents and turbulence occur, which can further reduce the amount of light that reaches the bottom of the river or stream.
As light penetration decreases, photosynthesis rates are lowered and the amount of oxygen available to the aquatic life in the river or stream is also reduced. The correct option is C.
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