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Geography, 05.11.2019 17:31, flynwildozfuf5
Reason why greenhouse effect and ozone layer depletion are considered two related serious environmental concerns of the 21st century.
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Geography, 23.06.2019 12:30, nisha87
Acivilization exists for several hundred yeaars, developing its own language. such a civilization probably has been: a. farming corn b. suffering from a lack of contact with the outside world. c. isolated by mountains or some other physical barriers. d. starving from lack of trade.
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Reason why greenhouse effect and ozone layer depletion are considered two related serious environmen...
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