Class 8 Science Study Material: Certification Test 467

Human Activities and Ecosystem Learning App & e-Book: MCQ 467

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MCQ: 467

Maintenance of oxygen and carbon dioxide in air is done by

forests
humans
animals
global warming

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Human Activities and Ecosystem Learning App & e-Book: MCQ 467

Human Activities and Ecosystem Study Material: Class 8 Science App & eBook MCQ

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