The words in columns I and II have been matched. Which is the correct set of answers?

Column I Column II

A. oxygen i. photosynthesis

B. carbon dioxide ii. protection from UV rays

C. nitrogen iii. breathing

D. ozone iv. found in proteins

(a) A-iii; B-i; C-ii; D-iv
(b) A-iii; B-i; C-iv; D-ii
(c) A-i; B-iii; C-iv; D-ii
(d) A-i; B-iii; C-ii; D-iv

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Solution

(b) A-iii; B-i; C-iv; D-ii
We breath oxygen and plants use carbon dioxide for photosynthesis. Nitrogen is a part of proteins. Ozone protects from UV rays of sun.

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