Prevents harmful infra-red rays of the sun from reaching the earth
Prevents radiation escaping the earth, hence keeping it warm
It is essential for rainfall
It filters harmful ultra -violet rays of the sun
mass
temperature
electric current
air
Chandragupta
Ashoka
Kunal
Harshavardhan
Narora
Tarapur
Rawat bhata
None of these
Benzoic acid
Sodium chloride
Sodium carbonate