C. 6.81x10^-4
It is negative 4 because the 6 is 4 digits away from the first 0.
Scientific notation has one number and then the decimal place so it can not be A or E.
Equality, people had their own place in the social structure
Answer:
They receive less radiation from the sun, due to their orientation relative to incoming sunlight.
Explanation:
Earth has multiple different climate zones, roughly arranged by latitude. The difference in climates comes because of multiple factors, but the most important one is the Sun and the sunlight of it. Because Earth has a rounded shape, different parts of it receive different amounts of sunlight.
If we compare the tropical and polar regions as two contrasting regions, we can see huge differences. The tropical regions are warm or hot all year round, while the polar regions are very cold throughout all of the year. The tropical regions though receive sunlight at a much more direct angle, thus the sunlight is much more concentrated and heats up the region. The polar regions receive sunlight at a very low angle, so they are dispersing over a very wide area so they can not warm up the region.
Desertification occurs<span> due to a decrease in vegetation. This can </span>happen<span> naturally due to a drought or can be caused by human activities. The lack of plants can cause changes to the land. Plants help shade the soil, so when plants are removed, the soil will be exposed to the sun and will dry out more quickly. So, I would say C. An area of forest is clear cut.
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