Question

As we know, water is one of the most essential substance for the existence of life. A large part of the body weight of all living beings is made up of _____.

• A. Air
• B. Soil
• C. Water
• D. None of these

Answer 1

The correct option is C

Water

As we know, water is one of an essential substance for the existence of life. Since life on the earth began in the oceans, and since no living things can survive without water, it is rightly called the source of life. Water forms a large part of the body mass of all living organisms. 90% of human blood is water. A large part of the body weight of all living beings is made up of water. All chemical reactions in living organisms take place in the presence of water.