The Atmosphere!

10 Responses | Created by alfo |

Multiple Choice-

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  1. 1

    The percentage of oxigen in the atmosphere is

  2. 2

    A gas in the atmosphere that varies between zero and five percent in different places is

  3. 3

    Photochemical smog is caused by the action on chemicals of

  4. 4

    Harmful substances in air, water, or soil are called

  5. 5

    The amount of mass in a given volume of a substance is its

  6. 6

    as the density og air decreases, its presssure

  7. 7

    Air pressure is measure in

  8. 8

    The warmest layer of the atmosphere is hte

  9. 9

    the lauer of the atmosphere that reflects radio waves is the

  10. 10

    The stratosphere helps protect the earth fromm too much ultraviolet rasiation because this layer of the atmosphere contains

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