CFCs ARE ORGANIC CHEMICALS WHICH ARE _ IN WEIGHT .
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light in weight
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light ....
Explanation:
the average time that CFCs remain in the troposphere .In very general terms, mixing within the atmosphere is caused by differences in temperature and by pressure gradients. These irregularities make some parcels of air buoyant, which results in the transport of pollutants throughout the atmosphere.
The most abundant CFCs emitted into the troposphere are CFC 11 and CFC 12. These CFCs are not soluble in water, so deposition does not removed them from the air.
the CFC molecules are indeed several times heavier than air.
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