Question

which cells are the smallest cells a polar b hadley c ferrel continue question 5 of 9

Explanation:

Polar cells are the smallest among the three types of atmospheric circulation cells. Hadley cells are larger, spanning from the equator to about 30° latitude. Ferrel cells are in - between in size, located between 30° and 60° latitude. Polar cells are confined to the polar regions (60° - 90° latitude) and have a relatively short vertical and horizontal extent compared to the other two.

Answer:

A. Polar