Class 12 NEET Physics Electromagnetic Waves Questions

© examsiri.com

Question : 41 of 51

Marks: +1, -0

Biological importance of ozone layer is

(2001)

it stops ultraviolet rays
ozone layer reduces green house effect
ozone layer reflects radio waves
ozone layer controls O2∕H2 ratio in atmosphere.

Go to Question:

Prev Question

Next Question