The average height of troposphere from surface is ______ km: March 17, 2019 BILAL KHATTAK0 A.11 B.12 C.13 D.14
Two ionic layers are present in: March 15, 2019 BILAL KHATTAK0 A.Troposphere B.Mesosphere C.Hetrosphere D.Thermosphere
The pause between troposphere and stratosphere is called ________ : February 22, 2019 BILAL KHATTAK0 A.Tropo pause B.Strato pause C.Mezzo pause D.None of these
_______ absorbs energy which is transferred to the atmosphere from the earth’s surface and maintains temperature for life: February 14, 2019 BILAL KHATTAK0 A.CO2 B.O2 C.N2O D.O3