Question

hotosynthesis : The process of making food b
lants.
sessment
Multiple Choice Questions :
1. The main component of air which forms
78% of it is:
(a) oxygen
(b) nitrogen
(c) hydrogen (d) carbon dioxide
Windmills are used to:​

Answer 1

Answer:

The main component of air is nitrogen which makes upto 78% of air and then comes oxygen which 21% then the rest of the gasses are present in less quantity .