Exposure to UV rays from Sun leads to …………risks of skin problems.
a) slop
b)increased
c) decrease
d) all of these
The major cause of ozone depletion is ………
a) skin cancer
b) lung cancer
c) breast cancer
d)blood cancer
Direct exposure to UV rays can lead to eye disease such as…………
a) cataract
b) gigantism
c) both a & b
d) none of these
Exposure to UV rays cause …………
a) damage immune system
b) aging of skin
c) both a & b
d) none of these
UV rays of sun also effect the…………
a) amphibians
b) marine life
c) immune system
d) all of these
UV rays also affect the plant by changing the …………of plants.
a) physiological
b) development processes
c) alter time of flowering
d) all of these