1.

What is green house effect? Write its effect.

Answer»

When CO2 is increased in atmosphere then it works as pollutant. CO2 absorbs heat and not allow it to enter in the atmosphere. Now the average temperature is increasing in the atmosphere. It is called Global Warming. Beside CO2, Methane, nitrous oxide and water vapour are also called green house gases. Global warming an acute crisis-It is a cause of melting of world glaciers. It may result into increase in sea level at many places, coastal regions are submerged. Its broad effects could be seen on rain, agriculture, forests, plants and animals. We still have enough time to control this effect otherwise at the end of century temperature could raise upto 2°C which is a dangerous level. Many countries have sign an agreement to decrease the amount of emission of such gases of green house gases.



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