A. Pockets of warm air resting on a valley during the afternoon
B. Pockets of cold air resting on a valley floor at night
C. Warmer hillsides that are less likely to experience freezing conditions
D. Cold, below-freezing air found at the top of a mountain
✅ The correct answer is option C.
The thermal belt refers to a mountainside zone where frost or freezing temperatures are less likely to occur than they are at either higher or lower elevations.
The thermal belt refers to a mountainside zone where frost or freezing temperatures are less likely to occur than they are at either higher or lower elevations.