Thursday, July 23, 2009

Atmosphere .

ATMOSPHERE -
gases:
- Nitrogen ( 78% )
- Oxygen ( 21% )
others:
- CO2 ( 0.04% )
- water vapor
- radon/argon.

What is atmosphere for ?
1. Protects the planet from spare radiation.
2. Controls the temperature of the planet (33○c)
3. Medium for communication (troposphere).
4. Controls weather conditions (stratosphere).

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