POLLUTION 

Pollution is caused by addition of harmful substances to the air,water and soil.It means making the environment dirty.Pollution can make people sick and can even change the weather.The substance thast pollute the environment is called pollutant.It affects the plants,animals and human beings. Pollution consist of following categories.Let us discuss in detail.

AIR POLLUTION

Air pollution is very harmful for health.Smoke from factories and vehicles pollute the air.Air makes up our atmosphere. Various kinds of gases present in the atmosphere.They are oxygen,nitrogen,carbon dioxide and methane.Any changes in the quantity of these gases cause air pollution.Burning of plastics also makes the air dirty.Inhaling of polluted air create breathing problems.Vehicles also release smoke that pollute the air.Cutting down of trees lower the level of oxygen in the atmosphere.Firecrackers also produce smoke.

WATER POLLUTION

It is mainly caused by release of pollutants into water bodies.People throw garbage into the water.Aquatic animals get affected by water pollution. Various human activities such as bathing ,washing clothes are involved in the water pollution.Water bodies include lakes, rivers, oceans, aquifers, reservoirs and groundwater. Water pollution results when contaminants mix with these water bodies.When human consumes fish and other sea foods from a contaminated water body,it leads to illness and diseases.Polluted drinking water also causes dysentery,diarrhoea.

LAND POLLUTION

People throw a lot of chemicals into the soil such as pesticides and fertilizers.Many factories dump large amount of garbage on the land.Fruits and vegetables grown in polluted soil cause illness.These pollutants can affect soil organisms and possibly contaminate our food and drinking water.Plants get affected when toxic chemicals seep into the soil and strip the land of nutritional content. These harmful substances often accumulate in the soil.Garbage dumps breed insects that cause diseases and spread bad odour. We should reduce the use of plastic materials.Pollution reduces soil's ability to yield food. It results in food crop contamination and disease. Soil pollutants wash into rivers causing water pollution.

NOISE POLLUTION

It is an unwanted sound that causes irritation and disturb the sleep and even loss of hearing in some cases.Noisy crackers affect our ears.Too much noise create head ache and stress.We should not play loud music.It cause discomfort to people around us.Noise pollution is considered to be any unwanted or disturbing sound that affects the health and well-being of humans and other organisms.Like air and water pollution, noise pollution also adversely affects our health.We should not blow horns of our cars,motorcycles unnecessarily.Construction of roads and buildings also produce noise pollution.