The diagram below shows the general pattern of air circulation in the atmosphere.
Many of the world's deserts are located at latitudes slightly below 30° N. This includes the region marked with an X on the map. Which of the following statements best explains this?
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its Atmospheric Convection & Climate on study island
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The diagram below shows the general pattern of air circulation in the atmosphere.
Many of the world's deserts are located at latitudes slightly below 30° N. This includes the region marked with an X on the map. Which of the following statements best explains this?
A.
Most of the moisture is removed from the air before it rises into the upper atmosphere.
B.
The air descending from the upper atmosphere contains very little moisture.
C.
Moist air near the equator tends to flow away from land and toward the oceans.
D.
Air near the equator moves quickly as Earth rotates, so it cannot carry much moisture.
I really HAVE NO IDEA what this answer is.
To understand why many deserts are located at latitudes slightly below 30° N, we need to consider the global air circulation patterns in the atmosphere. This can be explained by the Hadley Cell, which is a large-scale atmospheric circulation system.
The Hadley Cell starts near the equator, where warm air rises due to heating from the Sun. As the air rises, it cools and condenses, resulting in heavy rainfall and the formation of tropical rainforests near the equator.
Once the air reaches higher altitudes, it moves towards the poles and gradually descends around 30° N and 30° S latitudes. As the air descends, it becomes dry and warms up, resulting in dry and arid conditions at these latitudes.
This descending air suppresses the formation of clouds and precipitation, leading to a lack of rainfall and thus the formation of deserts.
Therefore, the reason why many deserts are located at latitudes slightly below 30° N is due to the descending dry air in the Hadley Cell, which limits precipitation and creates aridity in these regions.
The answer is D. Air near the equator moves quickly as Earth rotates, so it cannot carry much moisture.
Hope this helps!!