A) its pressure may very
B) its temperature may change
C) its volume changes under different conditions
D) its composition may vary
Correct Answer: D
Solution :
Air is a mixture of different gases like \[{{N}_{2}},{{O}_{2}},C{{O}_{2}}\] etc. Its general composition is \[{{N}_{2}}=78%,{{O}_{2}}=21%\] and traces of few other gases but there may be variation in its composition from place to place and at different height.
You need to login to perform this action.
You will be redirected in
3 sec
