What is true about air?
O cool air rises and warm air sinks
sinking air cools and rising air warms
sinking air warms and rising air cools
O warm air rises and cool air sinks
I will give brainleast!!
Also I have a lot of points!!

What is true about air O cool air rises and warm air sinks sinking air cools and rising air warms sinking air warms and rising air cools O warm air rises and co class=