Water is the most abundant substance on earth, the principal constituent of all living organisms and a major force constantly shaping the surface of the earth. It is also a key factor in air-conditioning the earth for human existence and in influencing the progress of civilization. Water on earth exists in three faces in a […]
Classification of Lakes To Degree of Enrichment With Nutrients and Organic Natter
Lakes are inland water bodies, small to moderately large in size, with their surface exposed to the atmosphere. Most lakes fill depressions below the zone of saturation in the surrounding soil and rock materials. Also most lakes have a surface area less than 100 square miles. The largest fresh water body Lake Superior in North America […]