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Rahul Goyal

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Rahul Goyal

Asked: October 15, 2021In: Class 12 Biology

It is a common practice to plant trees and shrubs near the boundary walls of buildings. What purpose do they serve.

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Rahul Goyal

Asked: October 15, 2021In: Class 12 Biology

Is it true that if the dissolved oxygen level drops to zero the water will become septic. Give an example which could lower the dissolved oxygen content of an aquatic body.

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Rahul Goyal

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