What is Water?
Chemically a molecule of water is composed of two hydrogen atom and one oxygen atom held together by covalent bounds. Water is precious to man’s existence as it is needed in agriculture, sports, industry domestic affair. Water may be hard or soft. Hard water is not good economically as more soap is needed to form lather. When water is free from minerals salt such as water is called soft water as it dissolves soap quickly.
Sources of Water Supply
The two major sources of water supply to man are:
Surface Water Supplies
Surface water supply are abundant and easily accessible. They are however prone to pollution from human transport, industrial, agricultural and domestic wastes.
Sources of surface water supply include the following:
Ground Water Supplies
Ground water supply are lodged in the earth. They are not easily accessible, except through the use of wells, boreholes and taps. Ground water are the cleanest sources of water.
Sources of ground water supply include the following:
Qualities of Good Water Supply
Uses of Water
Water is used for the following:
EVALUATION
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