CORRECT-INCORRECT STATEMENT Which of the following statements are the harmful effects of nitroge...
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CORRECT-INCORRECT STATEMENT
Which of the following statements are the harmful effects of nitrogen oxide?
I. It retards the rate of photosynthesis.
II. It causes respiratory disease in children.
III. It is toxic to living tissues.
Choose the correct statements.
(1) Both I and II
(2) Both II and III
(3) I, II and III
(4) Both I and III
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