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Ozone hole refers to...

Ozone hole refers to

A

Hole in ozone layer

B

Reduction in thickness of ozone layer in troposphere

C

Reduction in thickness of ozone layer in stratosphere

D

Increase in concentration of ozone

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The correct Answer is:
C
Reduction in thickness of ozone layer in stratosphere
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AAKASH SERIES-ENVIRONMENTAL CHEMISTRY-PRACTICE SHEET (STRAIGHT OBJECTIVE TYPE QUESTIONS)
  1. DV radiation from sun causes a reaction that produces

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  2. Chlorofluorocarbon releases which of the following chemical harmful to...

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  3. Ozone hole refers to

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  4. Ozone layer of stratosphere requires protection from indiscriminate us...

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  5. Tajmahal is effected by

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  6. Which onc of the following is mainly responsible for the depletion of ...

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  7. CHCl3 is responsible for the decomposition of ozone' to oxygell. Which...

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  8. An object is located at a height of Skrn from the surface of the carth...

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  9. The term not responsible for water pollution

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  10. Water pollution does not cause

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  11. The reagent used to detect fluoride present in water in

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  12. Whch one of the following substances is used to reactivate the de acti...

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  13. Formula of enamel on teeth is

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  14. Water become useless for drinking purpose if the fluoride concentratio...

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  15. In ion exchange method of defluoridation of water, which one of the fo...

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  16. DDT is

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  17. The suspected carcinogeic water pollutant is

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  18. Phosphate pollution is caused by

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  19. By using activated carbon method, F- ion concentration in water can be...

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  20. In the Nalgonda method, chemicals used for defluoridation of water in ...

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