Layers of the Atmosphere Flashcards
0
Q
Gravity holds the layers of the…
A
Earth
1
Q
What are the layers of the atmosphere?
A
- Troposphere
- Stratosphere
- Mesosphere
- Thermosphere
- Ionosphere
- Exosphere
2
Q
99% of the total mass of the atmosphere of the earth is below an altitude of ___
A
32 kilometers
3
Q
Name two facts about the troposphere:
A
- Contains almost all of the mass of the atmosphere
- The tropopause is the boundary between the troposphere and the stratosphere
4
Q
Name two facts about the stratosphere:
A
- Extends to an altitude of about 50km
- The ozone layer (absorbs the ultraviolet rays)
5
Q
Name two facts about the mesosphere:
A
- Extends to about 80km
- Temperature begins to decrease here
- Protects earth from meteoroids
6
Q
Name two facts about the thermosphere:
A
- Hottest layer of the atmosphere
- Breaks into two sublayers:
- Ionosphere(aurora borealis occurs here)
- Exosphere(satellites are present here)