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प्रश्न
What are biogeochemical cycles?
अति संक्षिप्त उत्तर
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उत्तर
These are cyclic pathways of nutrients between living organisms (bio) and the non-living environment (geo, chemical), such as air, water, rocks and soil. Carbon, nitrogen, oxygen and hydrogen make up about 95% of living mass.
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पाठ 18: Ecosystem - EXERCISES [पृष्ठ १०२६]
