Which of the following serve as green lungs? (a) The green pigment of the plants (b) Forests (c) Kitchen gardens (d) Greenhouse gases
ScienceClass 7CBSEAnswered 27 Mar 2026
Answer
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 Oxygen. Hence they are called as green lungs.
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