a natural phenomena that becomes harmful due to pollution is

which is defined as 'undesirable change in the physical, chemical or biological characteristics of air, water and land brought about by man's activities that may harmfully affect living organisms and other resources'. Based on the environmental component being polluted ther..

Biodegradable pollutants get broken down under natural conditions due to the action of micro-organisms. Therefore they are considerably less harmful. They behave as pollutants only in very large quantities. Example: excreta, sewage, pollen grains, etc. Non-b..

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Pollutants are ingredients causing pollution. They may be gases, liquids, solids of different chemical composition or may be high pitched sounds. The pollutants are not deliberately manufactured. But they are the by products of manufacturing processes. At different sta..

Water constitutes nearly three-fourths of the Earth's surface and it composes a large proportion of all living plant and animal matter. Approximately 70% of human body is water. Man drinks about 2 liters of water daily and it is required in abundance for domestic use, agricultural activities and in..

The substances/species produced either by a natural source or by human activity, which cause an adverse effect on the environment on being in excess of a desirable limit, are termed as pollutants. Some common examples of pollutants are carbon monoxide, sulphur dioxide,..

Pollution is defined as an 'undesirable change in the physical, chemical or biological characteristics of air, water and land brought about by man's activities that may harmfully affect living organisms and other resources..

Includes disturbance of surface soil in terms of its structure, chemical properties and biological activities due to agricultural activities such as cultivation of crops, irrigation, application of fertilizers and pesticide..

Water pollution can be point source or non - point source. That is, it can be caused near the source of pollution or where source of pollution is sometimes far away from source. Nature also contributes to water pollution besides human activitie..

Basic Concepts of Quantifying Effects of Pollution - Pollution is caused by almost all activities of human beings, either directly or indirectly. Use of mosquito repellent, use of cooking gas, use of diesel / petrol, use of detergent, passing of urine, throwing away wastes, use ..