X is the fourth layer of the atmosphere, it extends from 80 km to 500 km above the earth's surface and space shuttles orbit in this layer. X is
ATroposphere
BStratosphere
CMesosphere
DThermosphere.
X is the fourth layer of the atmosphere, it extends from 80 km to 500 km above the earth's surface and space shuttles orbit in this layer. X is
ATroposphere
BStratosphere
CMesosphere
DThermosphere.