Question

8. Life exists on the Earth because of the presence of​

Answer 1

Answer:

Life exists on earth because of it's favourable conditions. It consists many things like oxygen, water, etc. Which are the basic need of life on earth.

Explanation:

Let's see how / why we need water and oxygen in our body.

Water:

Our body is made up of 70% of water. Thus, we must be hydrated all time and drink water when we are feeling thirsty.

Oxygen:

Our body needs oxygen to breakdown food and release energy.

Hope it will help you...

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