Enzymes are biological catalysts that enhance the rate of reaction by:

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#Question id: 39358

#Environmental Science

Q. The international agreement aimed at controlling ozone-depleting substances is:

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#Question id: 39359

#Environmental Science

Q. Which element released from CFCs directly destroys ozone molecules?

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#Question id: 39360

#Environmental Science

Q. Ozone depletion results in increased:

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#Question id: 39361

#Environmental Science

Q. Increased UV-B radiation can cause all EXCEPT:

Skin cancer

 Cataracts

 Enhanced photosynthesis

DNA damage

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#Question id: 39362

#Environmental Science

Q.   Which of the following is an alternative to CFCs?

 Halons

 HCFCs

 DDT

 PCBs

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#Question id: 39363

#Environmental Science

Q. Polar stratospheric clouds play a role in ozone depletion by:

 Absorbing UV radiation

 Releasing greenhouse gases

 Activating chlorine compounds

 Producing ozone