Sources of water ppt

The remaining unfrozen freshwater is found mainly as groundwater, with only a small fraction present above ground or in the air. Sources of Fresh water1. Surface waterSurface water is water in a river, lake or fresh water wetland.

Both process requires large amount of energy and thus costly, which means desalination remains an expensive option for providing reliable fresh water supply , restricted to only economically well-off countries. It is also stored underground.

The world’s biggest waterfall is the ‘Niagara falls’. Well:- Wells are an important source of water in the Indian villages. About per cent of the human body is water. The bodies of all plants and animals contain water.

Dams , wells, tube wells , hand-pumps , canals, etc, are man-made sources of water. It explains about sources of surface water. It elaborates facts about groundwater like how underground water builds up, how groundwater is used etc.

Ground water refers to any source of water that lies beneath the soil layer.

Although ocean water makes up nearly percent of all water on earth,. More information Find this Pin and more on TpT Science Lessons by Sheila Melton TpT. Gases released include water vapor and carbon dioxide. Atmosphere contained high levels of carbon dioxide and no oxygen. Nonpoint sources are those that are distributed over a wide geographic area, such as a watershed.

They are conventional and non conventional sources of energy. Conventional sources of energy :- are woo flowing water and fossil fuels (coal, petroleum, natural gas). Non conventional sources of energy :- are solar energy, wind energy, biomass energy, ocean energy (tidal energy, wave energy, ocean thermal energy), geothermal energy, nuclear energy etc.

Thus ground water level is above the bottom of the stream temporarily. This causes flow of water from the soil to a ditch so long as water table is high. Springs are perennial streams.

What's more, it contributes to the wonder and majesty of the natural world. There are several key sources of water , such as lakes and groundwater, that are related to one another through the workings of the water cycle. Oceans and Seas (marine): saline or salty water that comprises the seas and ocean(s) and cover of the earth. The concentration of salt in seawater (salinity) is about parts per thousand. Uses of water include agricultural, industrial, househol recreational and environmental activities.

Water is absolutely essential to life.

All living things require water to grow and reproduce.