Q43 of 54 Page 351

Which of the following air pollutant is capable of preventing photosynthesis in plants?

Dust reduces the photosynthesis in plants due which causes a decrease in energy production in plants causing the plants to suffer.

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41

Which of the following are used in electric water filters to kill all the harmful micro-organisms present in tap water and make it absolutely safe for drinking?

 42

Which of the following is not an air pollutant?

 44

One of the following does not contribute in producing acid rain. This one is:

 45

Which of the following will reach the earth in greater amounts if the number of chlorofluorocarbons released into the air increases?