science words
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| atmosphere | the envelope of gasses surrounding the earth or another planet
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| troposphere | the lowest region of the atmosphere extending from the earths surface to a height about 6-10
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| ionosphere | the layer of the earths atmosphere that contains a high concentration ions and free electrons and is able to reflect radio waves
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| ozone layer | A colorless unstable toxic gas with a pungent odor and powerful oxidizing properties, formed from oxygen by electrical discharges or...
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| ultraviolet radiation |
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| chlorofluorocarbon | any class of coumpounds of carbon hydrogon cholorin
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| weather | the state of the atmosphere with respect to wind, temperature, cloudiness, moisture, pressure
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| humidity | humid condition; moistness; dampness.
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| relative humidity | the amount of water vapor in the air, expressed as a percentage of the maximum amount that the air could hold at the given temperature; the ratio of the actual water vapor pressure to the saturation vapor pressure
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| dew point | the temperature to which air must be cooled, at a given pressure and water-vapor content, for it to reach saturation; the temperature at which dew begins to form.
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| fog | a cloudlike mass or layer of minute water droplets or ice crystals near the surface of the earth, appreciably reducing visibility. Compare ice fog, mist, smog
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| precipitation | when cloud droplets combine and grow large enough to fall to earth
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