Which of the following is the primary reason for the formation of coastal deserts?
A. Cold ocean currents
B. Rain shadow effect
C. Subtropical high pressure
D. Monsoon winds
Answer: Option A
Solution (By JKExamLibrary)
Coastal deserts, such as the Atacama and Namib Deserts, form primarily due to cold ocean currents that cool the air, suppress evaporation, and stabilize the atmosphere, preventing rainfall.
Explanation:
The primary reason for the decrease in temperature with increasing altitude in the troposphere is that the air is heated from the Earth's surface, so higher altitudes are further from this heat source.
Explanation:
A negative IOD event is characterized by warmer than normal sea surface temperatures in the eastern Indian Ocean and cooler than normal in the west. This often leads to increased rainfall over Indonesia and Australia and reduced rainfall over East Africa.
Explanation:
The polar vortex is a large area of low pressure and cold air that encircles the Earth's poles. When it weakens or shifts, it can cause cold air to spill southward into the mid-latitudes.
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