Q1250
Ozone layer above the surface of Earth provides a shield against
A.
X-rays
B.
Ultra-violet rays
AnswerC.
Gamma rays
D.
Infra-red rays
Answer: Option B
Solution
Answer: Option B
Solution:
Ozone is present in the atmosphere in small amounts, in a layer 10 to 60 kilometres above the earth (ozonosphere) and in close proximity to the ground. The ozone layer serves as protective shield against ultraviolet (UV) rays.