Question

Question 2
Why is water essential for life?

Answer 1

Water is essential for life because all life forms are dependent on it. Life began in the presence of water. Water is the medium of life. It is the most abundant compound found in all organisms. It varies from 65 to $89\%$ in different organisms. Human tissues contain about $20\%$ water in bone cells and $85\%$ in brain cells. Almost all the reactions of a cell occur in the presence of water.