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Environmental Issues

Question

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Which one of the following is mainly responsible for green houses effect?

SO₂

CO₂

CO

O₂

Solution

B.

CO₂

Green house effect refers to selective energy absorption by CO, in the atmosphere which allows short wavelength energy to pass through but absorbs longer wavelength and reflects heat back to earth. It is caused by carbon dioxide, methane, nitrogen dioxide and water vapour.

Some More Questions From Environmental Issues Chapter

WHO’s recommendations about the industrial noise limit is of :

Which of the atmospheric layer contains ozone layer ?

The amount of dissolved oxygen required by the microorganisms to degrade the organic wastes present in water is called ?

The cause of acid rain is :

Which one of the following causes ozone depletion ?

What disease is caused due to consumption of fishes captured from water contaminated with mercury ?

Which one of the following is not a green-house gas ?

Which gas contributes the maximum in global warming ?

Fill in the blanks with suitable words :
1. Increase in concentration of soluble salts in the soil is called.........

2. Aforestation can check the advancement of......... .

3. DDT is a serious pollutant as it is a.........pollutant and undergoes......... .

4 .........plant has become a troublesome weed in agricultural fields.

5 .........are major aerosol pollutant present in jet aircraft emission.

Write “True” or “False” :

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