Atmosphere Test

Many satellites actually orbit Earth within this layer, including the International Space Station. Variations in the amount of energy coming from the Sun exert a powerful influence on both the height of the top of this layer and the temperature within it. The aurora, the Northern Lights and Southern Lights, occur here. Another name for this layer is the “heat” layer.

• Troposphere

• Mesosphere

• Stratosphere

• Thermosphere

• Exosphere

The "air" is very, very, very thin, making this layer even more space-like than the thermosphere. In fact, the air is constantly - though very gradually - "leaking" out of Earth's atmosphere into outer space. There is no clear-cut upper boundary. High Earth Orbit satellites can be found here.

• Troposphere

• Mesosphere

• Stratosphere

• Thermosphere

• Exosphere

The infamous ozone layer is found within this layer. Ozone molecules in this layer absorb high-energy ultraviolet (UV) light from the Sun, converting the UV energy into heat. Unlike the troposphere, the layer actually gets warmer the higher you go! That trend of rising temperatures with altitude means that air in the stratosphere lacks the turbulence and updrafts of the troposphere beneath. Commercial passenger jets fly in the lower part, because this less-turbulent layer provides a smoother ride. The jet stream flows in this layer.

• Exosphere

• Thermosphere

• Mesosphere

• Stratosphere

• Troposphere

The density of our atmosphere _______________ with an increase in altitude.

• increases

• gets greater

• decreases

• gets heavier

The atmosphere is composed of mainly

• Oxygen

• Nitrogen

• Argon

• Carbon Dioxide

The most dense layer of the atmosphere.

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

• Exosphere

The Northern Lights are found in this layer.

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

• Exosphere

This layer is the “heat layer”.

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

• Exosphere

The Ozone layer is in this layer of the atmosphere.

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

• Exosphere

The layer between the troposphere and stratosphere.

• Mesopause

• Stratopause

• Tropopause