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How does the ozone layer depletion and a...

How does the ozone layer depletion and a preventive measure that can be taken to prevent it

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A harmful effect of ozone layer depletion is -UV radiation causes in human skin.
one preventive measure of ozone layer depletion is-to increase the use of eco friendly substance instead of CFC.
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PATHFINDER-ENVIRONMENTAL CHEMISTRY-QUESTION BANK
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  2. Mention two harmful effects of photochemical smog?

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  4. What is feron? Mention one of its effect.

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  5. Give examples of a sink of CO and two sinks of CO2

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  7. Biochemical oxygen demand value of four water samples P, Q, R and S ar...

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  8. Threshold limit value of three pollutant X,Y and Z are respectively 9 ...

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  9. DO value of a water sample is 6 ppm. Calculate the weight of dissolved...

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  10. 100 ml of a sample of water required 1.96 mg of potassium dichromate i...

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  11. COD value of a water sample is 40 ppm, Calculate the amount of acidifi...

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  12. Ozone is harmful in the environment segment X but is useful in the env...

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  13. Freons are boon to industry, but curse to environment,justify

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  14. Bleaching og paper with hydrogen peroxide is preferred now-a-day .Why?

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  15. TLV value of four pollutants A, B C and D are 2ppm, 9 ppm, 20 ppm and ...

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  16. COD of a water sample is 8 ppm, Calculate the weight of acidified K2Cr...

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  17. K2Cr2O7 in presence of the H2SO4 for the oxidation of dissolved organ...

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  18. A sample of pond water contains 40mg of organic matter requires 32 mg ...

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