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Definition
| a thin layer of air that forms a protective covering around the planet. |
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Definition
| the lowest layer of the atmosphere. it contains 99% of the water vapor and 75% of the atmospheric gases. rain, snow, and clouds occur in the troposphere, which extends up to about 10 km. (we live in the troposphere) |
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Definition
| is found within the mesosphere and thermosphere. it is a layer of electrically charged particles. the ionosphere allows radio waves to travel across the country to another city. |
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Definition
| within the stratosphere made of oxygen |
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Definition
*absorbed by the ozone.
*is one of the many types of energy that come to earth from the sun.
* to much exposure to it can damage your skin and cause cancer. |
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Definition
*cfc
*chemical compound found in some refrigerators, air conditioners and aerosol sprays cfc's can enter the atmosphere if these appliances leak or are improperly discarded |
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