Question

what is pollution.....atleast 200 words

Answer 1

Pollution is when something is added to the environment that is harmful or poisonous to living things. Smoke or dust in the air is a type of pollution as it is bad for the lungs when we breath in. Sewage in drinking water is another type of pollution, as it can make people ill because it contains germs and viruses. People living next to a building site where there is too much noise can become sick as they cannot sleep.

As pollution grows, so have ways to combat it. Solar energy and wind energy give people other ways to power their homes. When people use these alternative forms of energy, they put less carbon dioxide into the environment. Pollution is of four types; Air, Noise, Water, and Soil or Land pollution.

Air pollution:

Here are some ways from which air pollution occurs Air pollution is caused by poisonous gases, sulphur dioxide, nitrogen dioxide, carbon monoxide and very small particulates. It is also caused by the smoke and harmful gases released by the fires that make vehicles and factories go. Use of coal, wood and kerosene as fuels for fire also causes air pollution. Air pollution may cause breathing problems such as asthma or other health problems. It also causes diseases like cancer.

Air pollution causes global warming and acid rain. It results in increased temperatures, erratic rains and drought worldwide. This makes it difficult for the living organisms to survive.

Water pollution:

Water pollution is the presence of harmful materials in water, such as sewage, dissolved metals, waste from farms, factories and crude oil spilled from oil tankers. The three main substances that pollute water are nitrates from fertilizers, sewage and detergents.[3]

Activities such as bathing and washing clothes near lakes, ponds or rivers add nutrients like nitrogen and phosphorous into the water bodies.This leads to excessive growth of algae on the surface of water. It blocks the penetration of sunlight and air, thus reducing oxygen.

Pollution causes harm to organisms living in water and can also harm people's health. In extreme cases it may cause problems such as cancer.[4]

Noise pollution:

Noise pollution (also known as sound pollution) is noise which is harmful to humans and animals. This includes the sound of vehicles, loud speakers, etc. Noise pollution can cause ear problems or even permanent deafness, especially to older people.

Soil pollution or land pollution:

Soil pollution (also known as land pollution) is when man-made chemicals, such as hydrocarbons, heavy metals, solvents, get into the soil. These chemicals come from industrial activities and from bad waste disposal. Soil pollution may cause health risks. The chemicals can produce harmful vapors, or they can contaminate water supplies underneath the polluted soil.

Plastic pollution:

Plastic pollution is the accumulation of plastic products in the environment that adversely affects wildlife, wildlife habitat, or humans.

Thermal pollution:

A common cause of thermal pollution is the use of water as a coolant by power plants and industrial manufacturers. This puts back warm water, and so raises the temperature and decreases the oxygen content of the water.


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Answer 2

$\huge\textbf{Pollution :}$


Pollution is one of the biggest problem on earth. It make the environment, air, water etc dirty and dangerous for everyone.

It leads to many changes in environment which are very dangerous for everyone.


$\huge\textbf{Types of Pollution :}$

There are many types of pollution. Some of them are -

1) Air pollution.

2) Water pollution.

3) Noise pollution.

4) Land pollution etc.

$\textbf{1) Air pollution :}$

As the population is increasing day by day. So they need vehicles also for their comforts. But due to increase in vehicles on roads it cause air pollution to the environment.

Also the smoke produced by chimney of factories is also a reason for air pollution.

It leads to many diseases like asthma, irritation in eyes etc.

$\textbf{2) Water pollution :}$

When we throw garbage, industrial wastes etc. in water it cause water pollution. Due to this many of the fishes dies. This leads to decrease in number of fishes.

$\textbf{3) Noise pollution :}$

As the vehicles are increasing on road day by day, due to this Noise pollution is also increasing day by day. Because they produce to much noise. Speakers also cause noise pollution.

Because of noise pollution children were unable to concentrate on their studies. Also people cannot sleep in noise.

$\textbf{4) Land pollution :}$

Adding of fertilizers to plants cause soil pollution. Also when factories put their industrial chemicals in water and when we use that water for our crops also cause soil pollution...

So, we have to stop the pollution from increasing. Because it only harm us. We have to plant more and more trees. Because trees helps to purify air.

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