Subject :IGK Class : Class 5
Which of the following statements is correct?
AToo much hunting increases the number of animals in forests.
BUsing sewers and treatment plants to remove human waste help in reducing pollution.
CCarbon black in some aerosols increases the amount of heat reflected back by the earth.
DBurning coal, petroleum and natural gas releases nitrogen, carbon dioxide and oxygen that trap heat in the earth.
Ans 1:
Class : Class 8
Ans 2:
Class : Class 6
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