The answer is A. The main driver of the convention in atmospheric
circulation is the suns energy. When the sun heats the earth, the atmosphere directly below the sun gets heated more
and faster compared to other regions causing an area of low pressure. This hot
air mass rises and is replaced by cooler air masses (from high-pressure regions)
from neighboring regions. This, essentially,
causes winds and air currents.
The answers could be vasodilation and vasoconstriction (respectively) if that’s what u are studying.
Answer:
Pandemic is related to disease and epidemic isn't
Explanation: