PPSC Past Paper Sub inspector Punjab Police (Service Quota) 2019 Solved MCQs, Everyday Science MCQs, PPSC Solved Past Papers MCQs

Why is the Ozone important for mankind?

A. Protection from UV rays of sun
B. It releases oxygen in the air
C. It maintains temperature of the earth
D. It releases hydrogen in the atmosphere

Leave a Reply

Your email address will not be published. Required fields are marked *