GK
SOLAR SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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distance from the Sun
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presence of an atmosphere and magnetic field
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liquid water
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all of these are reasons life exists on Earth
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Detailed explanation-1: -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.
Detailed explanation-2: -It is useful to categorize the requirements for life on Earth as four items: energy, carbon, liquid water, and various other elements. These are listed in Table 1 along with the occurrence of these factors in the Solar System (2).
Detailed explanation-3: -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 rainforests and high mountaintops. Scientists describe Earth in terms of spheres. The solid surface layer of Earth is the lithosphere.
Detailed explanation-4: -Life is possible on Earth because the planet has water on its surface and oxygen gas in its air. Earth also has the perfect range of temperatures for life. It is not too hot, like Venus, and not too cold, like Neptune.