EVERYDAY SCIENCE

Detailed explanation-1: -A reservoir is an artificial lake where water is stored. Most reservoirs are formed by constructing dams across rivers. A reservoir can also be formed from a natural lake whose outlet has been dammed to control the water level. The dam controls the amount of water that flows out of the reservoir.

Detailed explanation-2: -Reservoir water can be used to supply water to our homes and factories. Reservoirs are designed to store the rain that falls during the wetter parts of the year, so that there is a continuous supply of water for the drier periods. The water from reservoirs must be cleaned before it is used.

Detailed explanation-3: -Most water on earth is found in the oceans and seas, followed by glaciers and groundwater. Approximately 97% of the world’s water is stored in the oceans as saltwater. Water from the ocean evaporates into the atmosphere, then falls back to Earth’s surface as precipitation.

Detailed explanation-4: -Throughout Earth’s history, water has been distributed between four distinct reservoirs-the oceans, ice sheets and glaciers (the cryosphere), terrestrial storage and the atmosphere.

Detailed explanation-5: -For example, the oceans, glaciers, freshwater lakes, rivers, groundwater, and living organisms. These are reservoirs from where we can get water, if we want to.