
Layers of the Atmosphere
Flashcard
•
Science
•
9th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the composition of Earth's atmosphere?
Back
The Earth's atmosphere is composed of approximately 78% nitrogen, 21% oxygen, and trace amounts of other gases such as carbon dioxide and argon.
2.
FLASHCARD QUESTION
Front
What is the Karman line?
Back
The Karman line is an internationally recognized boundary between Earth's atmosphere and outer space, located at an altitude of 100 kilometers (62 miles) above sea level.
3.
FLASHCARD QUESTION
Front
What is the function of the ozone layer?
Back
The ozone layer absorbs the majority of the sun's harmful ultraviolet (UV) radiation, protecting living organisms on Earth.
4.
FLASHCARD QUESTION
Front
Which layer of the atmosphere do humans live in?
Back
Humans live in the troposphere, which is the lowest layer of the atmosphere where weather occurs.
5.
FLASHCARD QUESTION
Front
What is the temperature trend in the troposphere?
Back
In the troposphere, temperature decreases with altitude.
6.
FLASHCARD QUESTION
Front
What is the stratosphere known for?
Back
The stratosphere is known for containing the ozone layer and has a temperature that increases with altitude due to the absorption of UV radiation.
7.
FLASHCARD QUESTION
Front
What is the mesosphere?
Back
The mesosphere is the layer of the atmosphere above the stratosphere, where temperatures decrease with altitude and most meteors burn up upon entering this layer.
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