First slide

Green House Effect and Global Warming

Question

Climate of the world is threatened by

Easy

A

increasing concentration of atmospheric oxygen
B

decreasing amount of atmospheric oxygen
C

increasing amount of atmospheric carbon dioxide
D

decreasing amount of atmospheric carbon dioxide

Solution

The increase in the level of green house gases (e.g.,CO₂, CH₄, CFC, N₂O etc.) has led to the considerable heating of earth surface leading to global warming.
The relative contributions of various green house gases to global warming is CO₂ (60%) > CH₄ (20%) > CFC (14%) > N₂O (6%).

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