Question

what are convection cells?
wind blowing in a straight line
looping patterns where air flowing from the poles to the equator rises and falls
looping patterns where air flowing from the equator to the poles rises and falls
air deflecting to the left in the northern hemisphere

Explanation:

Convection cells are looping patterns in the atmosphere. Warm air near the equator rises, moves towards the poles, cools, and then sinks back towards the equator. This creates a circular - like (looping) pattern.

Answer:

looping patterns where air flowing from the equator to the poles rises and falls