Answer :
As we know that warm air rises up and it is lighter because it expands.
Cool air sinks down because it is heavy and is compresses air and has high pressure.
So the answer to the question is,
On heating air, it expands and rises.
On cooling air, it contracts and descends.
Rate this question :
How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
RELATED QUESTIONS :
Describe an activ
NCERT - Exemplar SciencePaheli kept an em
NCERT - Exemplar ScienceMatch Column I wi
NCERT - Exemplar ScienceTo expel hot air
NCERT - Exemplar ScienceState whether the
NCERT - Exemplar ScienceFour schematic di
NCERT - Exemplar ScienceA fire alarm usua
NCERT - Exemplar Science<span lang="EN-US
NCERT Science<span lang="EN-US
NCERT Science