Match column I with column II. There can be more than one match.
Coloumn IColumn II
$(a)$. on heating air$(i)$. descends
$(b)$. on cooling air$(ii)$. expands

$(iii)$. contracts


AcademicPhysicsNCERTClass 7

As we know that air expands and rises on heating.

So, $(a)\rightarrow (ii)$ & $(iv)$

And air descends and contracts on cooling.

So, $(b)\rightarrow (i)$ & $(iii)$

Updated on 10-Oct-2022 13:29:54