Fill in the blank with the correct word : ……………………………. upsets the oxygen balance in the air.
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Excessive release of Greenhouse Gases upsets the oxygen balance in the air.
Explanation:
Oxygen balance in the air is maintained by release of CO2 by human beings and release of oxygen by plants during photosynthesis. Excessive release of various Greenhouse gases like CO2, NO2, H2 AND CO decreases the oxygen level in the air . It increases the amount of carbon in the air polluting the entire environment. The oxygen balance in the air is thus disturbed due to excessive amount of carbon and low oxygen.
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