The region at which the atmospheric envelope is inserted in outer space .
Exosphere
15
Mesosphere layer is highly rarefied , because it contains limited quantities of .............. and.............gases only .
hydrogen , helium
15
............. is the fourth layer of in atmospheric envelope and it's also called ...........layer , because it's the hottest layer in the atmospheric envelope .
Thermosphere , thermal
15
The temperature of thermosphere layer ............. as we go up until it reaches ............'C .
increases , 1200
15
The upper part of thermosphere layer is called .............. and extends up to .............Km above sea level .
ionosphere , 700
15
The highest temperature layer in the atmosphere is .............. and the lowest temperature one is..............
thermosphere , mesosphere
15
Most of weather features occur in ............layer , whereas satellite swim through the ...............layer .