Question

Fill in the blanks.
1)_____C rise in temperature has been seen in the last 100 years.
2)Emission of CFC is more than ________ device.
3) The use of resources _________ has become necessary to prevent temperature rise.
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Answer 1

1. Global surface rise in temperature has been seen in the last 100 years.

2.Emission of CFC is more than cloro fluro carbon device.

3.The use of resources Green house effect has become necessary to prevent temperature rise.