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GOVT.SEN.SEC.SCHOOL ATTARI (ROPAR) Prepared By:Baljinder Kaur Poonam Devi Bhupinder Singh Dinesh Class 10th

TOPIC ENVIRONMENTAL POLLUTION

CONTENTS          

Environmental Pollution Types of Pollution Air Pollution Causes of Air Pollution Water Pollution Causes of Water Pollution Noise Pollution Causes of Noise Pollution Soil Pollution Causes of Soil Pollution

Environmental Pollution:- It is a term that refers to all the ways that human activity harms the natural environment. Pollution may be defined as an undesirable change in the physical, chemical or biological characteristics of our air, water and land that may harmfully affect human life and other species also.

Types of Pollution: The chief types of environment pollution include air pollution, water pollution, noise pollution and pollution caused by solid waste.

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Air Pollution:It is the contamination of the air by substances such as fuel exhaust and smoke.

Causes of Air Pollution 

Dust gets raised by strong winds, movement of vehicles, sweeping of floors and roads, small particles of dust keep floating in the air.

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Smoke emitted by the powerhouses, factories and automobiles. Sneezing and Coughing. Human activities like burning wood, fuel garbage, crackers & other things cause pollution.

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2. Water Pollution: The contamination of water sources by harmful wastes, sewage toxic, chemicals oils etc. is called water pollution.

Causes of Water Pollution 1.

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Factories pollute water by dumping harmful waste into it. Pesticides and other chemical fertilizers also reach water bodies through rain water. Soap & detergents used in washing are also released into rivers & lakes. Sewage containing human waste and garbage also pollute the water bodies.

3. Noise Pollution: The presence of loud noise in the air is called sound or noise pollution.

Causes of Noise Pollution 1.

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Machines in a factory a lot of sound and cause pollution. Vehicles make a lot of noise when they blow horns. Loudspeakers, used in functions and meetings also sound pollution.

4.Soil Pollution : It is the destruction of the earth’s thin layer of productive soil where much of our food is grown. Any substance that reduces the fertility of soil is known as soil product and the process, as soil pollution.

Causes of Soil Pollution 1.

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Fertilizers, herbicides, pesticides and other chemicals. Industrial waste like chemicals, fly ash and residues of combustion of solid fuels. Domestic garbage like paper, pulp, plastic, rubber, cloth and glass. Air pollutants as compounds of sulphur and lead that eventually mix with soil and pollute it.

Bibliography 10th class science book.  Encarta. 

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