Air pollutants are harmful to living things. Which of the following is/are their harmful effects ? (I) This forms acid rain (II) They cause breathing problems in animals (III) They cause interface with photosynthesis in plants (IV) They cause diseases in the respiratory system of man and animals. (1) (I) only (2) I and II only (3) I, II and III (4) I, II, III and IV

Air pollutants are harmful to living things. Which of the following is

1.	Air pollutants are harmful to living things. Which of the following is/are their harmful effects ? (I) This forms acid rain (II) They cause breathing problems in animals (III) They cause interface with photosynthesis in plants (IV) They cause diseases in the respiratory system of man and animals. (1) (I) only (2) I and II only (3) I, II and III (4) I, II, III and IV
Answer» (4) I, II, III and IV

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