Question

what is the purpose of global circulation?
a to redistribute heat
b to balance the greenhouse effect
c to move air masses around the earth

Explanation:

Global circulation refers to the large - scale movement of air, water, and heat around the Earth. The primary purpose of global circulation is to redistribute heat from the equator (where there is a surplus of heat) to the poles (where there is a deficit of heat). While moving air masses (Option C) is a part of the process of global circulation, it is a means to the end of heat redistribution. Option B is incorrect as global circulation is not directly about balancing the greenhouse effect. The greenhouse effect is related to the trapping of heat by greenhouse gases in the atmosphere, and global circulation is more about the physical movement of heat - containing substances (air and water) around the planet.

Answer:

A. to redistribute heat