Question

Q: What happens when cold air approaches a body of warm air? 

 

 Optional Answers:

 

   A. The Warm air rises.

 

  B. The warm and cold air both disappear.

  

  C. The warm and cold air mix immediately.

 

  D. The cold air rises. 

Answer 1

Answer a is correct.
Warm air rises.
EXAMPLE: when your cooking the hot air or warm air rises or moves upward.
Hope I helped.

Answer 2

A. The warm air rises! Hope this helps