what is the difference between natural and human environment?

how is biosphere important for the sustenance of human life ?

how plants and animals are dependent on each other in their distinct physical environment.

1.Biosphere is important for sustenance of human life since it is a zone of contact of atmosphere, lithosphere and hydrosphere.All these three components are essential for the sustenance of human life.
2.On lithosphere or land human beings live and construct houses for shelter, grow crops for food and fibre, extract minerals and forests are also grown on the land.
3.Hydrosphere comprises various sources of water and different types of water bodies like rivers, lakes, seas, oceans, etc. which is essential for all living organisms.
4.Atmosphere protect us from the harmful rays and scorching heat of the sun.
5.Thus we can say all the three components of biosphere are essential for sustenance of human life.

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ans1 natural environment -1  natural environment means the natural and physical surroundings of man.

                                                  2  it includes physical and biological environment.

                                                   3  eg hydrosphere lithosphere atmosphere.

human made environment- 1 human environment means the surroundings made by man.

                                                    2  it includes only human made things and objects

                                                      3  eg roads monuments buildings etc.

ans2 -because it is a narrow zone of contact where land ,air ,water meet to support life.

ans3- 1 animal cannot produce their own food hence they are dependent on plants for food.

            2  plants provide oxygen to animals which is essential for their survival.

            3 animal provide carbon dioxide which is utilized in photosynthesis by plants.

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