GREENHOUSE EFFECT AND GLOBAL WARMING
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Accumulation of gases in the environment tends to increase the greenhouse effect which leads to the global warming.
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Global warming is defined as the tremendous increase in the temperature of earth’s atmosphere due to change in the normal concentration of gases.
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Global warming has drastic effects on biotic and abiotic components.
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Overall increase in temperature.
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Melting of the polar ice caps.
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Rise in the level of ocean waters.
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Change in the rainfall pattern.
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Affects the biodiversity
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Affects the agricultural practices.
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Affects the survival of plants and animals.
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Ozone layer depletion etc.
Ozone layer depletion:
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Accumulation of chlorofluorocarbons in the atmosphere breaks ozone molecules and thus depletes the ozone layer.
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CFCs are used in some spray cans to force the contents out of the can.
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They are also used in refrigerators, air conditioning systems and some fire extinguishers.
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They are used because they are not poisonous and do not catch fire.
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This depletion can affect the human health, aquatic life, plants animals and materials.