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A : Atmosphere plays an important role i...

A : Atmosphere plays an important role in maintaining the heat balance on earth.
R : Atmosphere absorbs a portion of electromagnetic readiation coming from the sun and transmits near UV, visible and near IR radiation.

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Assertion (A) : Atmosphere plays an important role in maintaining the heat balance on earth. Reason (R) : Atmosphere absorbs a portion of electromagnetic coming from the sun and transmits near UV, visible and near IR radiation.

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Assertion : infrared radiation plays an important role in maintaining the average temperature of earth Reason : Infrared radiations are sometimes referred to as heat waves.

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NARAYNA-ENVIRONMENTAL CHEMISTRY-EXCERCISE - IV (Asseration - Reason Type Questions)
  1. Assertion (A) : Ionosphere contains gases in the ionized from which fo...

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  2. Assertion (A) : Smaller particles (sie lt 5 microns) cause fibrosis of...

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  3. Assertion (A) : The medium which is afffected by the pollutant is rece...

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  4. A : The lower the concentration of DO the more plluted is the water sa...

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  5. A : Atmosphere plays an important role in maintaining the heat balance...

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  6. Assertion (A) : Excess amount of CO, in air is responsible for green h...

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  7. Assertion (A) : Alkylated mercury is more toxic than mercury. Reason...

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  8. Green house effect is

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  9. Assertion (A) : Countries like Netherlands, Bangladesh and Maldives fa...

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  10. A: Acid rain reduces the fertility of the soil, R: Acid rain has a co...

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  11. Assertion (A) : Acid Rain water normally has a P^(H) of le 5.6. Rea...

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  12. Assertion (A) : The oxides of nitrogen and sulphur combine with rain w...

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  13. Assertion: The pH of aicd rain is less than 5.6 Reason: Carbon dioxi...

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  14. Assertion (A) : Acid rains have been reported in some places which are...

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  15. Assertion (A) : Aldehydes are one of the consituents of photochemical ...

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  16. A: Fluorosis results if F^(-) ion concentration exceeds 10 ppm in drin...

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  17. Assertion: Excessive use of chlorinated synthetic pesticides causes so...

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  18. Assertion: If BOD level of water in a reservoir is less than 5 ppm it ...

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