Answer:
Population density is the number of people per unit of area, usually quoted per square kilometre or square mile, and which may include or exclude for example areas of water or glaciers. ... Therefore, the worldwide human population density is around 7,500,000,000 ÷ 510,000,000 = 14.7 per km2 (38 per sq. mi.).
Answer:
Population density is a measurement of population per unit area, or exceptionally unit volume; it is a quantity of type number density. It is frequently applied to living organisms, most of the time to humans. It is a key geographical term.
Explanation:
Population Density is a key to our survival on earth even though we don't realize it.
Approximately how far back in time does the fossil record extend? Approximately how far back in time does the fossil record extend? 3.5 billion years 5.0 million years 5.0 billion years 3.5 million years
Answer:
A : 3.5 billion years ago
Approximately about 3.5 billion years ago the fossil record extend. The reason the correct option is a.
According to radiometric dating, Earth formed around 4.5 billion years ago. The oldest fossils, which are found in rocks older than 3.5 billion years (see Precambrian epoch), resemble creatures like bacteria and cyanobacteria (blue-green algae). The so-called Ediacara fauna, which consists of small, soft-bodied wormlike organisms, is where the oldest animal fossils, dating back roughly 700 million years, may be found. In rocks that are around 540 million years old, there are many fossils with mineralized skeletons that belong to several living phyla.
The oldest fossils date back between 3.48 and 4.1 billion years. A geological timescale and the relative ages of various fossils were recognised in the 19th century as a result of the discovery that specific fossils were linked to specific rock strata.
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what is extrusive rock
Answer:
Here's your answer
Explanation:
Extrusive rock, any rock derived from magma (molten silicate material) that was poured out or ejected at Earth’s surface. By contrast, intrusive rocks are formed from magma that was forced into older rocks at depth within Earth’s crust; the molten material then slowly solidifies below Earth’s surface, where it may later be exposed through erosion. Extrusive rocks are usually distinguished from intrusive rocks on the basis of their texture and mineral composition.
Answer:
Extrusive rock, any rock derived from magma (molten silicate material) that was poured out or ejected at Earth's surface
Explanation:
If Earth did not experience the greenhouse effect, Choose one: the temperature of Earth would be much cooler. Earth would not receive as much radiation from the Sun. the temperature of Earth would be the same. there would be more liquid water.
Answer:
The temperature of Earth would be much cooler
Explanation:
The greenhouse effect is earths atmosphere being polluted by gasses that prevent heat from escaping as easily causing earth's temperature to rise and if that didnt exist earth would probably be alot cooler.
define fertility management
Answer:
Soil fertility refers to the ability of soil to sustain agricultural plant growth, i.e. to provide plant habitat and result in sustained and consistent yields of high quality.
Think about the African countries you've
heard of. List as many of these countries as you can.
Answer:
South Africa, Kenya, Ethiopia, Tanzania, Uganda, Nigeria, Sudan, Morocco, Malawi, Rwanda, Cameroon
Qué semejanzas y diferencias reconoces entre las civilizaciones americanas (Mayas, Aztecas e Incas) y el pueblo Mapuche, previo a la conquista de los europeos? *
This is English Brainly, You can ask questions in Spanish Brainly
Es Brainly en Ingles, Puedes pedir preguntas en Brainly en Espanol.
The paragraph above describes the kangaroos rats ?
Answer:
A
Explanation:
It's explaining it's habitat and surroundings
Answer:
what they said
Explanation:
Solve for x: 2 ( x+5 ) = 0
Answer:
x=-5
Explanation:
Answer:
x = -5
Explanation:
Distribute 2 to the parentheses:
2(x + 5) = 0
2x + 10 = 0
Subtract 10 from both sides:
2x = -10
x = -5
Which statements accurately describe soil? Check all that apply.
1)Soil condition directly affects crop growth.
2)Soil is used faster than it is replaced.
3)Soil cannot be replaced in a short time.
4)The amount of soil on Earth is unlimited.
5)The destruction of soil can take just minutes.
Answer is 1,2,3,5
Answer:
1, 2, 3, and 5 are the correct answers.
The correct statements are that-
Soil condition directly affects the crop growth.Soil is used faster than it is replaced.The soil cannot be replaced in a short time.The destruction of soil can take just minutes.The correct set of options that match the statements above are as under 1, 2, 3 and 5.
Soil
If the soil is infertile, there will be poor or no growth of crops. If the soil condition is healthy, the crop growth will be good. The soil replacement takes place gradually over a period of time due to natural events like wind, rain, etc. The amount of soil on Earth is limited at a given point of time. Due to deforestation, the amount of soil is also getting reduced. Destruction of soil can happen due to natural calamities like landslides, earthquakes, etc.Hence, the statements as under 1, 2, 3 and 5 are correct about the characteristics of soil.
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Question 2 (2 points)
How have new technologies helped scientists determine the age of Earth?
Answer:
Radioisotopic dating as a new technology has really helped to determine the age of the earth.
Explanation:
The actual age of the earth has been a subject of wanton speculation among different groups of people. Speculations arise from religious, cultural and philosophical perspectives.
However, studies using many radioactive isotopes believed to be present from the origin of the Earth and having extremely long half lives have been most helpful in determining the age of the earth. Radioisotopic dating is a common technique used to determine the age of ancient artifacts. It has shed a great light on the possible age of the earth.
Hence the application of radioisotopic dating as a new technology has really helped to determine the age of the earth.
Question 7 of 40
Which of the following best describes a natural resource? As
A. Currency used to exchange for or purchase products
B. A cultural or religious ideology used by humans
C. Products created by humans for improved living conditions
D. A substance, energy source, or organism used by humans
SUBMIT
Answer:
D. A substance, energy source, or organism used by humans
Explanation:
Its not man made like the others
Why is the water colder on the southwest coast of the United States, yet the northeast coast has warmer water?
Answer:
Because of climate change and how close things are to the equator
Explanation:
Between which longitudes does the region experience daytime?
Answer:
Mostly between the 90 Degree East and West longitudes
Explanation:
Because Earth has tilt of over 23.5 degree The day and night time differs according to its revolutions.
between 90 degree of east west lingtitude
A thrust fault increases the thickness of the crust as it moves toward a continental interior in a mountain belt; yet the crust beyond the mountain front stays the same thickness. Isostasy would suggest that the area at the mountain front, where the thrust emerges, should ________ over time.
Answer:
subside
Explanation:
Isostasy is a geographical term which describes the condition of gravitational equilibrium that exists within the Earth's crust and mantle, there by, making the crust stays above a heights that relies on its physical attributes, such as thickness and density.
In Isostasy, its occurrence process involves principles of buoyancy in which an Earth crust apply stress on the less stronger mantle, such that for over a geological time moves laterally in a way that the load is contained by height adjustments.
Hence, Isostasy would suggest that the area at the mountain front, where the thrust emerges, should SUBSIDE over time.
Explain how landscapes have economic value. In your answer refer to the image below and your own knowledge. Remember to write your paragraph using TEEL.
Answer:
Landscapes have economic value because the owners of the land or the area have many visitors coming and going and they can put up shops etc to get money
Explanation:
what is the capital of nigeria?
Answer:
Abuja
Explanation:
The capital of Nigeria is Abuja! :) Lagos was the capital of Nigeria until 1991 when it was moved to the city of Abuja.
How does climate change impact on the Forests of the Blue Mountains and Sumatra?
Answer:
More intense and frequent bushfires due to climate change threaten the world heritage values of the Greater Blue Mountains World Heritage Area. “Climate change will increase temperatures and lead to more wildfires.
What is the approximate longitude of mainland Africa’s westernmost point?
Am I right? I need help
What is the biome with the richest abundance of life?
Answer:
The richest abundance of life is found within the equatorial forest biome.
This biome is located in the equatorial region:
with a large number of animals and plants species; the forest is formed by several layers (at the base are grasses, algae, ferns, trees under 10 m and 25-35 m and the trees up to 50 m).the rubber tree, the cocoa tree, the coffee tree, banana trees;different animals.Day and night are equal in equator. Why?
Answer:
The reason we on Earth have equinoxes at all is because the Earth's axis is tilted. ... Earth's axial tilt also means that our planet's equator is tilted relative to the plane of its orbit around the Sun – what astronomers call the “plane of the ecliptic”.
Explanation:
As the sun rays fall straight and two halves of the earth can be made through equator,it represents the equal effect on both parts so,day and night are equal in equator.
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1) what are tectonic plates ? How it is formed ? please my humble request please mark me Brainlist Thank you !!
Answer:
the things that form the earths crust they are formed by rock
Explanation:
hope this helps
What are some examples of possibilism today?
Answer:
hope this helps
Explanation:
The Green revolution, Invention of fertilizers and pesticides, the modern irrigation methods and the organic farming methods have also contributed to the high output of crops and other products related to agriculture to meet the high food demands across the world.
Which of the following is NOT native to Australia?
Answer: A, C and D
Explanation:
The correct answer is (D), sheep. Didgeridoos and boomerangs are artifacts invented by Australian Aborigines . Koalas evolved in Australia, and to this day are only found in the wild in Australia. In contrast, sheep were first domesticated in ancient Mesopotamia and then brought by humans to other parts of the world. The first sheep were brought to Australia by ship, from the Cape of Good Hope in 1788.
Answer:sheep Explanation:
HELPPP!! giving brainliest
What are the weather patterns in a Mediterranean type of climate?
Without the North Atlantic Drift, which of the following statements about Scandinavia’s climate would be true?
A.
It would have much warmer temperatures and less rain.
B.
It would have much warmer temperatures and more rain.
C.
It would have much lower temperatures and more rain.
D.
It would have much lower temperatures and less rain.
Answer:
B.
Explanation:
The warm waters moderate the weather so its not as cold as it should considering its latitude. Also when the atmosphere is warmer it can hold more moisture adding to rainfall.
Answer:
Yes the answe is B
Explanation:
five examples of internal and external layers of the structure of the earth {5marks}
Answer:
5 examples of internal structure of the earth are:
1) Crust.
2) Upper Mantle.
3) Lower Mantle.
4) Outer Core.
5) Inner Core.
5 examples of external structures of the earth are:
1) Exosphere.
2) Thermosphere.
3) Mesosphere.
4) Stratosphere.
5) Troposphere.
Of the total energy intercepted at Earth's surface and available for work, only about ________ is actually fixed by photosynthesis. Of the total energy intercepted at Earth's surface and available for work, only about ________ is actually fixed by photosynthesis. a) 1% b) 5% c) 10% d) 15%
Answer:
a) 1%
Explanation:
The ecosystem is the self-sustaining attachment of living plants and animals and their non-physical environment Sugar and by-products in combination with water and light are oxygenated by photosynthesis Co2. The overall growth of a plant is based on pure photosynthesis, which is the difference between photosynthesis and respiratory damage. The amount of pure photosynthesis depends on environmental factors such as light, water, temperature, soil fertility and regulation of plant space, height and competition from other plants and animals. Solar energy enters the ecosystem through photosynthesis and dissolves thermal energy from the system in several stages. Of the total energy available for work on the earth's surface and only 1% is determined by photosynthesis as chemical energy (energy stored as carbohydrates in plants).What’s the value of y = -2x + 4
Answer:
(y/2)-2=x
Explanation:
y=-2x+4
y-4=2x
(y-4)/2=x
(y/2)-2=x
Look at the map. Which answer best describes the income level of Central America?
A. Mainly upper-middle income
B. Mainly high income
C. Mainly low income
D. Mainly lower-middle income
Answer:
B
Explanation:
dark blue all over the continent
Answer:
Mainly lower-middle income
Explanation:
centra america is the littel bit between mexico and south america
the correct answer is the yellow one.