The atmosphere is concentrated at the Earth's surface and rapidly thins as you move upward, blending with space at about 100 miles above sea level
Most of the stratosphere, which extends to about 50 kilometers above the surface, is cold and free of clouds Figure 8 12 Structure of Earth's Atmosphere
TROPOSPHERE (up to 10 miles above Earth's surface): The lowest region of the atmosphere, where weather and clouds are formed STRATOSPHERE (10-30 miles above
The thermosphere is the layer of the Earth's atmosphere directly above the mesopause and below the exosphere It varies from 90 km to about 500 km
Since collisions are negligible above the exobase, the molecules in this region, called the exosphere, move along ballistic trajectories under the action of the
Air molecules are held near the earth by gravity • This strong, invisible force pulling down by the air above compresses air molecules closer together, which
above the earth The temperature here decreases with altitude I • The strato~phere is the layer above the troposphere extending from 16 km to 50 km (9 I
9 oct 2018 · At this extreme altitude gas molecules are widely separated Above (100 km) from Earth's surface the chemical composition of air becomes
atmosphere This picture was taken from a weather balloon at about 30km above the Earth's surface In contrast to the troposphere, the temperature in the