Presence of which gas in the outer most layer of the atmosphere

• on 24 Jul 2019
• By Uzair Khan
• General Knowledge

Presence of which gas in the outer most layer of the atmosphere

Presence of which gas in the outer most layer of the atmosphere does not allow ultraviolet rays of the sunlight to reach earth—

a. Helium
b. Ozone
c. Oxygen
d. Chlorine
Submitted by: Uzair Khan Mardan
Update By: Shah Muhammad Awan