Water ResourcesWater Resources So. Science PPTSo. Science PPT

Contents:Contents: Introduction.Introduction. Prior Knoledge.Prior Knoledge. About Water resources.About Water resources. Division of water resources.Division of water resources. Source of Water resources.Source of Water resources. Uses of Water.Uses of Water.

Introduction:Introduction:

This is virtual booklet of water This is virtual booklet of water resources is going to be about how resources is going to be about how people use water, how we would people use water, how we would have to take care of it and many have to take care of it and many things that with this booklet you things that with this booklet you should learn. Also with this booklet should learn. Also with this booklet you should learn how to not waste you should learn how to not waste the water and enjoy you to practice the water and enjoy you to practice it to save this beautiful world.it to save this beautiful world.

Prior knowledge:Prior knowledge:Are sources of water and they are useful from the humans and animals.Water resources is important on Earth and without it we can’t do many things or satisfied our needs.We would have to take care of the water because in few years there's not going to be enough water for us.Water is a renewable natural resources also like air and soil.

About Water resources:About Water resources: Fresh water is renewable resources like soil and air. Fresh water is renewable resources like soil and air.

The worlds is supplied by clean and fresh water and itis decreasing.The worlds is supplied by clean and fresh water and itis decreasing. Water Water is one of our most critical resources, but around the world it is under threat. is one of our most critical resources, but around the world it is under threat.

Water demand already exceeds supply in many parts of the world and as Water demand already exceeds supply in many parts of the world and as the world population continues to rise, so too does the water demand. the world population continues to rise, so too does the water demand.

Are sources of Are sources of water that are water that are useful to useful to humans.humans. Uses of Uses of water include water include agricultural,agricultural, industrialindustrial, , householdhousehold, , recreationalrecreational and and environmental environmental activitiesactivities. . Virtually all of Virtually all of these human these human uses require uses require fresh water.fresh water.

Division of Water resources:Division of Water resources: Water resources are divisible into two distinct Water resources are divisible into two distinct

categories : the surface-water resources and categories : the surface-water resources and the ground-water resources. Each of these the ground-water resources. Each of these categories is a part of the earth's water categories is a part of the earth's water circulatory system, called the hydrologic cycle, circulatory system, called the hydrologic cycle, and is derived from precipitation, which is and is derived from precipitation, which is rainfall plus snow. rainfall plus snow.

Distribution of water:Distribution of water:

Source of fresh water:Source of fresh water:

Ground Water:Ground Water:

Sub-surface water, or groundwater, is fresh Sub-surface water, or groundwater, is fresh water located in the pore space of soil and water located in the pore space of soil and rocks. It is also water that is flowing within rocks. It is also water that is flowing within aquifers below the water table.aquifers below the water table.

Desalination:Desalination:

Desalination is an artificial process by Desalination is an artificial process by which saline water (generally sea water) is which saline water (generally sea water) is converted to fresh water.converted to fresh water.

Frozen Water:Frozen Water: Several schemes have been proposed to Several schemes have been proposed to

make use of icebergs as a water source, make use of icebergs as a water source, however to date this has only been done however to date this has only been done for novelty purposes. Glacier runoff is for novelty purposes. Glacier runoff is considered to be surface water.considered to be surface water.

Uses of water:Uses of water: Agricultural: Agricultural: It is It is estimated that 69% of estimated that 69% of worldwide water use is for worldwide water use is for irrigation, with 15-35% of irrigation, with 15-35% of irrigation withdrawals being irrigation withdrawals being unsustainable.unsustainable. Aquaculture is Aquaculture is a small but growing a small but growing agricultural use of water. agricultural use of water. Industrial: Industrial: It is estimated It is estimated that 15% of worldwide water that 15% of worldwide water use is industrial.use is industrial. The The distribution of industrial water distribution of industrial water usage that is varies widely, usage that is varies widely, but as a whole is lower than but as a whole is lower than agricultural use.agricultural use.

The The EndEnd

BY – VISHALBY – VISHAL