The presence of ozone (O3) in the atmosphere of earth

Q. The presence of ozone (O3) in the atmosphere of earth

A.            Hinders higher rate of photosynthesis

B.            Helps in checking the penetration of ultraviolet rays to earth

C.            Has been responsible for increasing the average global temperature in recent years

D.            Is advantageous since it supplies O2 for people travelling in jets

Answer: Helps in checking the penetration of ultraviolet rays to earth