Question

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Answer 1

Climatic changes have become a threat for the survival of various wild species. A number of species of wild animals and plants have gone down and many are on the verge of extinction. Climate change is a global problem. Besides the natural forces, human activities have also contributed majorly to this change.
Climate change, also called global warming, refers to the rise in average surface temperatures on Earth. An overwhelming scientific consensus maintains that climate change is due primarily to the human use of fossil fuels, which releases carbon dioxide and other greenhouse gases into the air.



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Answer 2

Answer:

CHANGING ENVIRONMENT

Days are getting hotter and Nights are becoming colder than ever. This is best sign to know that our environment has changed. The increased use of vechicles , refrigerators, sprays produce a harmful compound or gas called CFC's(Chloro Fluro Carbons)with destroys the ozone layer. The depletion of ozone layer allows the harmfull UV rays to reach earth without any obstacles.As a result , The earth warms up much faster and radiatesheat into the atmosphere, causing GREEN HOUSE EFFECT & automatically GLOBAL WARMING . The ice caps near arctic region are melting quickly , causing a great harm to the aquatic animals.

Some island have been diapperared and greater number of species became extinct and never to be seen again. All this all mainly because of change in Environment.