GEOGRAPHY

What is the biosphere? Give its major features.

Biosphere. The biosphere is the narrow zone of contact between the land, water and air, comprising all forms of life.Features: There are several species of organism in the biosphere. They vary in size from microbes and bacteria to huge mammals. All the living organisms including human are linked to each other and to the biosphere …

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Explain the Composition of the Atmosphere.?

Composition of the Atmosphere. Atmosphere is composed mainly of nitrogen and oxygen. They both make up about 99% of clean, dry air (Nitrogen 78%; Oxygen 21%) Other gases like Carbon-dioxide; argon and others comprise 1% by volume. Oxygen is the breath of life while nitrogen helps in the growth of living organisms. Carbon-dioxide is present …

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