Question

the earth is the only planet to have life why?

Answer 1

The earth is the only planet where life exists there are many reasons why there is life on earth first of all the reason is that we have And Atmosphere biosphere lithosphere and Hydrosphere these are the main components with exists life on earth explain each of them as you know biosphere the animals plants are included in biosphere and lithosphere Land is included and Hydrosphere as we know from the name hydro means water the water will be included in the Hydrosphere so this is all components are needed for one individual to live so they are on earth and that's why we can live o r life exist on earth

Answer 2

because
Earth recive moderate heat and light from the sun.

It's one-third parts of toatal earth surface is covered by Water. water is essential for all living organism.

Here sufficient amount of oxygen, carbon dioxide, nitrogen and other gases is present

A special form of oxygen called ozone protect us from ultraviolet rays coming from sun

there is four sphere -Atmosphere, lithosphere, biosphere, hydrosphere if anyone of this is not available then there is no life present on earth.

Earth is the unique planet because life is only present on earth
The envelope around the earth protect us from incoming metroids..



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