The biosphere is made up of the parts of Earth where life exists. The biosphere extends from the deepest root systems of trees to the dark environment of ocean trenches, to lush rain forests and high mountaintops.
Why do living things exist on Earth?
Earth is at an adequate distance from the sun which gives us heat that is neither too hot nor too cold. Earth has enough amount of water, food, and air for the survival of living organisms. Earth has a protective ozone layer which protects us from the harmful rays.
Where do most of Earth's living things live?
Most of life exists on land — 86% of biomass. This is because almost all plant life – mostly trees – is terrestrial. The authors estimate that marine plants, for example seaweed, make up less than 1 billion tonnes of carbon.
Which is the realm of all living things on Earth?
Biosphere is the part of the Earth where life exists. The biosphere is the fourth component of the earth and it is the totality of all living things on the Earth.