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Prentice Hall: Earth Science
Chapter 15 test questions
6
Science
7th Grade
09/17/2007

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Cards

Term
What is the atmosphere?
Definition
The layer of gases that surrounds the Earth.
Term
Why are greenhouse gasses bad?
Definition
There are harmful gasses that are dangerous to humans and the enviroment.
Term
What does the atmosphere do, tempeture-wise, as you go higher?
Definition
First it gets colder, then warmer, then colder, and then it skyrockets in heat.
Term
Where is the ionosphere?
Definition
It is the first minor part of the Thermosphere
Term
Why is the atmosphere layered?
Definition
The layers have different tempatures, purposes, and importance.
Term
What happens in the mesosphere?
Definition
Meteorites burn up so that they don't hit the surface.
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