When Man goes into space, he needs protective gear because he is out of his environment. We live comfortably in the biosphere where life thrives.
Biosphere comes from the Greek word ‘bios’, which means life. We humans live in the biosphere. Biosphere is a layer that extends slightly above and slightly below the surface of the earth. This space covers the earth’s entire surface.
Biosphere is, in fact, the living part of our home planet and it comprises a number of ecosystems. It also includes the atmosphere. The atmosphere acts just like a blanket over the earth as it protects our planet from harmful rays of the sun.
Millions of different ecosystems are present in the biosphere and they are contained within many geographical areas known as biomes. The ecologists divide the biosphere into smaller units such as ecosystems, habitats and niches. This division makes its study easier because each of these units can be studied individually in detail.
Biosphere consists of some 35,000 species of living creatures including human beings.
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