A) mixture
B) compound
C) element
D) None of these
Correct Answer: A
Solution :
Air is a mixture of several gases that are invisible and odourless. It consists of about 78% Nitrogen, 21% Oxygen and less than 1% of Argon, Carbon dioxide and other gases as well as varying amount of water vapour.You need to login to perform this action.
You will be redirected in
3 sec