SELECT * FROM question_mgmt as q WHERE id=6132 AND status=1 SELECT id,question_no,question,chapter FROM question_mgmt as q WHERE courseId=11 AND subId=16 AND chapterId=477 and ex_no='1' AND status=1 ORDER BY CAST(question_no AS UNSIGNED) CBSE Free NCERT Solution of 7th science Forests: Our Lifeline explain the role of forest in maintaining the bala

Question:

Explain the role of forest in maintaining the balance between oxygen and carbon dioxide in the atmosphere.

Answer:

cycle

Forests are called the lungs of the earth. Because in forests through the process of photosynthesis plants release oxygen and help animals for the respiration process. Plants utilize carbon dioxide which is released by human beings and animals through the process of respiration. Both plants and animals help each other in exchange of gases. In this way forests maintaining a balance of gases (O2 and CO2) in the atmosphere. 


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SELECT ex_no,question,question_no,id,chapter FROM question_mgmt as q WHERE courseId='11' AND subId='16' AND ex_no!=0 AND status=1 and id!=6132 ORDER BY last_viewed_on desc limit 0,10

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  • 4 months ago

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  • Answered by Ekta Mehta
  • 4 months ago

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  • Answered by Ekta Mehta
  • 4 months ago

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