Class 7 Chapter 16 Water: a Precious Resource
Introduction If you have water, you can think of the future. World water day is celebrated on 22nd March. Water is a very precious natural resource. On average 50L water is used per person for their daily activities like drinking, bathing, washing clothes and maintaining proper hygiene. The demand for water is increasing day by […]
Class 7 Chapter 16 Water: a Precious Resource Read More ยป
