The basic rule for air is A) warm air rises and cold air sinks. B) warm air sink and cold air rises. C) warm and cold air sink. D) warm air is heavy.

The answer is A

Explanation:

think about making a cake or a warm apple pie in the oven. the warm air makes it rise, not think of a cold pie that before you put it in the fridge, its big right? then once you take the pie out it looks flat and even, the cold air pushed it down.

(bro she is ancient)

j < 14

j is jakes age

since jake is younger it makes his age less than his sisters

(if you meant she is 14)