Bio-distribution of Elements Biological functions of the living organisms require 27 elements of which 15 are metals. The elements required in major ...

Aquatic Pollution effects on Humans. The water is easily polluted by physical and chemical agents present in the atmosphere, microbial disease causing ...

Effects of Soaps and Detergents on Environment:  Soaps, as already stated, are biodegradable. This implies that when discharged into water bodies, ...

The chemical composition of water bodies, e.g. ground water, surface water (river, lakes), oceans, etc., depends on their source. Ground Water:  ...

Water Quality Parameters: No single parameter is possible to determine the quality of water. Depending on the use for which water is intended to be used, ...

The main types of water pollutants include biological agents, chemical agents and physical agents. Biological Agents:  These include bacteria, ...

Fluoride:  The major source of fluoride to man is drinking water. In most parts of India the fluoride content is about 0.5 mg/L. There are, however, some ...

Atmosphere Composition The atmosphere, as we know, is the region of air present above the earth’s surface. It extends up to a height of about 500 km from ...

Water is a unique liquid, without which no life can survive. Water is a liquid at room temperature, with mp. 0°C, bp. 100°C, high dipole moment (1.84 x ...

Water present in rivers, streams and lakes constitute the surface water. It is present to the extent of only 0.0091 per cent of the total global water (see ...