Which has only one type of atom throughout?
A. compound
B. element
C. mixture
D. molecule
Answer:
D
Explanation:
When this soldier was waiting in the plane for their jump, what type of energy did they have?
Answer:
kinetic energy
potential energy
Explanation:
kinetic energy when they were waiting
potential energy once they jumped off
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What do you think of when you hear the words human impact?
Match the characteristics and elements to their group.
Answer:
Kr is a Noble Gas. Na is an alkali metal. F is halogen.
Group 17 is halogens. Inert is Noble Gases. Odourless and colourless is Noble Gases. Alkali metals do not occur freely in nature. Alkali metals are malleable
Explanation:
Compared to other stars we observe, the Sun appears bigger and brighter because:
A. It is visible at night
B. It is much closer to Earth
C. It has more mass
D. It is older
Answer:
Compared to other stars we observe, the Sun appears bigger and brighter because it is much closer to earth.
Objects closer to earth appear to be much bigger and brighter.
Let me know if this helps!
Answer:
B
Explanation:
The Sun is 93 million miles away. Other stars are light-years away. With this in mind, we orbit the sun, meaning that we are close enough to be within its gravitational field.
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Jean-Paul is racing in the Tour de France bicycle race. He is moving along rapidly at a speed of 15 kilometers per hour. Suddenly, a strong wind begins to blow into his face. Jean-Paul cannot exert any more force on the pedals. What will happen to Jean-Paul's speed while the wind continues to blow against him?
If the air resist his motion continuously, speed of Jean - Paul get reduced until he could apply an equal force in opposite direction to the wind.
What is force?Force is an external agent acting on an object to change its state of motion or rest or to deform it. There are various kinds of force such as gravitational force, magnetic force, frictional force.
If there are two different forces acting from the same direction will add up together and the net force will be the sum of their magnitudes. If they are in opposite direction, they will balance each other will decreases the displacement.
Hence, the force from the air resistance will balance the force exerted by Jean Paul and his speed will decrease until he apply a greater force forwards.
Find more on balanced forces:
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please help its overdue
Answer:
First one:
The camel, reindeer and platypus does not belong. (Platypus live in the amazon river).
Second one:
The cactus does not belong and the spiky brown thing who looks like it is in the center of a desert does not belong too.
Third one:
Rainfall: The average annual precipitation of a temperate rainforest biome is 200cm. In much warmer areas, the average precipitation goes up to about 350 cm annually.
Temperatures:
In the file!!!
Other information:
Temperate Forest
Temperate forests are those found in the moderate climates between the tropics and boreal regions in both the Northern and Southern Hemisphere. They may also be called “four-season forests” because the midlatitude climates harboring them tend to experience four distinct seasons. A vast diversity of different forest types make up this broad category, from the broadly distributed temperate deciduous forests to pine woods and relatively geographically restricted temperate rainforests.
Temperate forest often refers specifically to the temperate deciduous forests widespread in eastern North America and Eurasia, but other temperate-forest types exist in the planet's middle latitudes where moderate, frequently four-season climates encourage diverse tree growth.
Locations and Climates
Temperate forests range across large areas of North America and Eurasia as well as smaller portions of the Southern Hemisphere. Temperate deciduous forests, the “signature” temperate forest type, reach their greatest extent in the eastern United States and Canada, Europe, China, Japan and western Russia. Climatically speaking, temperate forests tend to experience fairly long growing seasons and decent amounts of rainfall that may be spread fairly evenly across the year or concentrated in a particular season; deciduous hardwoods, which lose their leaves in winter, dominate most major temperate forests. Drier temperate climates in, for example, western North America may see evergreen pines and other drought-tolerant conifers proliferate. Temperate rainforests, two-thirds of which lie in North America’s Pacific Northwest, experience milder, moister, often maritime-influenced climates than other temperate forests; those of the Pacific Northwest are unique in the dominance of conifers over hardwoods.
Seasons in a Temperate Deciduous Forest
During the winter, a temperate deciduous forest looks dead because leaves have fallen off most of the trees. Wildlife in these forests may endure the winter or migrate to warmer climates. Spring sees a rebirth of sorts with hardwoods leafing out and a proliferation of flowering shrubs and forbs. As days begin shortening and temperatures dropping in fall, the leaves of deciduous trees change color and begin dropping, while animals begin storing food for the winter and/or packing on body fat for winter survival or the energetic demands of migration.
The Flora of Temperate Forests
The soils of many temperate forests are fertile and support a rich diversity of trees. Temperate deciduous forests often feature varieties such as maples, oaks, elms and birches. Conifers such as pines and hemlocks may play a minority role in these hardwood-dominated communities, but, again, these needle-leaved trees may also form the majority in certain temperate ecosystems, such as the North American temperate rainforest and the pine forests of the southeastern U.S. A sub-variety of temperate forest found in so-called Mediterranean climates commonly features evergreen broadleaf trees, such as “live oaks” in California and parts of Southern Europe and eucalpts in Australia. Mosses, ferns and understory shrubs are common in many temperate forests.
The Fauna of Temperate Forests
With their moderate climate and typically rich array of food resources, temperate forests tend to support a great diversity of wildlife. Koalas, possums, wombats and other marsupials roam Australian temperate forests, while in North American and Eurasian ecosystems deer, bears, foxes, wolves, squirrels and rabbits are common inhabitants. China’s temperate forests play host to giant and red pandas, which mostly eat bamboo. Many migratory songbirds nest in temperate forests, taking advantage of their spring and summer bounty of blossoms, berries, seeds and insects.
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What type of star has an absolute brightness of 1 and a surface temperature of around 7,500 °C?
The HR diagram is shown with Absolute Brightness on the y axis from negative four to six and Surface Temperature on the x-axis from 40,000 to 2,500 degrees Celsius. There are several dots plotted between four and six absolute brightness and 10,000 to 2,500 degrees Celsius labeled Supergiants. There are several dots plotted between 1.5 and three absolute brightness and 7,500 to 2,500 degrees Celsius labeled Giants. There are several dots plotted between negative four and negative two absolute brightness and 30,000 to 7,500 degrees Celsius labeled Dwarfs. Down the middle, there are several dots plotted diagonally from ordered pair 40,000 and five down to 2,500 and negative three labeled Main Sequence.
Select one:
a. Supergiant
b. Giant
c. Main sequence
d. Dwarf
Answer:
Main Sequence Stars or C
Explanation:
our star, the sun, being a main Sequence Star with an absolute brightness of 1 with a temp of about t 7500 °C gave me this answer
In a well-constructed response explain the differences and similarities between Natural Selection and Selective Breeding