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ScienceCLASS 7CBSE
answered 27 Mar 2026

Which of the following serve as green lungs? (a) The green pigment of the plants (b) Forests (c) Kitchen gardens (d) Greenhouse gases

A.VERIFIED ANSWERfact-checked by tutors

Soln:

Answer is (b) Forests

Explanation:

Plants release oxygen during photosynthesis which is used by all the organisms. Plants help to maintain the concentrations of CO2 and OxygenHence they are called as green lungs.

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