Question

How is water useful for us? Explain briefly.

Answer 1

1. Water helps remove poisonous substances and waste products from the body.
2. It helps in digestion of food.
3. It helps form body fluids – blood plasma, lymph and digestive juices.
4. It protects bones from becoming dry and brittle.
5. It helps in blood circulation.
6. It helps maintain body temperature.
7. It supplies mineral salts to the body.

Water makes up about 60% of total body weight, and blood plasma contains about 90% water.