Chapter 7: Pollution of Air and Water

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Pollution of Air and Water


Describe the ‘Green House Effect’ in your own words.


The radiations that fall on the earth’s surface are trapped by the atmosphere just like a greenhouse where the heat is trapped inside a nursery and is not allowed to move out. These trapped rays warm the Earth's surface. This is known as the greenhouse effect. The increasing amount of CO2 leads to the greenhouse effect. Some other greenhouse gases are sulphur dioxide, nitrous oxide, methane and water vapour. We know that plants consume carbon dioxide while photosynthesis but nowadays there is a little space left for forests. As a result, the amount of carbon dioxide is increasing in the atmosphere. Therefore, the CO2 amount is increasing because it is not being used up due to deforestation. This CO2 traps the heat and do not let it escape. This thereby increases the temperature of the Earth. This is known as Global warming.

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