Top 7 types of pollution
By Zahid Shafique
April, 24,2021.
causes of pollution 

'POLLUTION' It is a common title that all students know and most of the people also. It is the most dangerous item in the world. Pollution has become a big problem that the world faces today.
Pollution is the start of dangerous material in the introduction. These dangerous materials are called pollutants. Pollutants can be natural, such as volcanic clinker. They can also be built by human activities, such as waste or run-off produce by factories. Pollutants damage the grade of air, water, and land.
You all may have read about three types of pollution in your lower-level school education. That is empire pollution, water pollution, and air pollution. Just in this, we will study more than three types of pollution. To properly read all the paragraphs.
You all have seen pollution in your wildlife. And I am lovely sure that some of your activities also hand out to creating it. Maybe not by the aim of creating pollution. Like some of you have set fire to plastics, thermal coals or wood may have floor plastics, food wrappers in the road, or drainage—firecrackers at festivals, etc.
You have seen pollution in the form of waste thrown on the roadside, black gases or harmful gases released in the air, and the dumping of injuring garbage and skeleton of animals in rivers, water streams, lakes, ponds, etc.

India ranked 3rd position, and Bangladesh ranked 1st position to create pollution in the world. The major starting point of pollutants generated in India is dust and construction, Industries, Waste burning, Transport, Diesel generators, and Home cooking.
Due to the fast increase in pollution, the Ozone layer is getting scraggy and thinner and deleting because of these dangerous UV rays entering the earth's surface and grow unusual heat temperatures. This became a serious problem on the multinational level.
TYPES OF POLLUTIONS :
Here we will talk about seven groups of pollution on earth.
sources of pollution 
 1. Land pollution
 2. Water pollution
 3. Air pollution
 4. Light pollution
 5. Noise pollution
 6. Thermal pollution
 7. Plastic pollution 

LAND POLLUTION

It refers to the drop of earth surfaces at and below ground level. It is caused by the accumulation of hard and liquid waste materials.
It leads to land shame caused by the presence of xenobiotics or other changes in the natural soil. It pollutes the soil and groundwater. Also, soil loses its richness.

WATER POLLUTION

Water pollution refers to any change in the physical, chemical, or biological properties of water that will have dangerous effects on any living body.
This occurs due to toxic material in contact with water bodies such as lakes, rivers, pools, aquifers, streams, oceans, and dissolved or mixed.
The main reason for this pollution is due to the dumping or disposal of spoiled garbage, stiff animals, chemicals, and fertilizers drained by water into rivers, ponds, streams, etc., since this drinking water became risky to drink.

AIR POLLUTION

It is a mixture of solid and liquid particles and certain unsafe gasoline released directly into the air. 
The major part of air pollution in town is toxic gas. It happens from car outflow, toxic gasses or chemicals from industries, dust, construction, pollen, and mold spores. Due to this ozone layer get reduce.
That's why heart and lungs patients are mushrooming, and expire problems like asthma, etc., are common in cities.

NOISE POLLUTION

It is also known as environmental noise or sound pollution; it is a propagation of noise with line-up crashes on human or animal life activities.
According to the world health company (WHO), sound levels less than 70 dB are not dangerous to humans. The source of this pollution is mostly built by the machines, transport, playing music on loudspeakers on high volume, horning of vehicles in traffic jams, propagation systems, etc.
It especially damages human health by causing hearing loss, a rise in blood pressure and pulse rates, stress levels, uneasiness, a low span of concentration, etc. 

LIGHT POLLUTION

It is also known as photo pollution or shining pollution; It is an interperate, misdirected or invasive, or unnecessary use of artificial outdoor lighting.
Some tests were done on insects, turtles, birds, fish, reptiles, and other wildlife species to show that light pollution can change efforts, foraging areas, and breeding cycles.
 Sea turtles provide one dramatic example of how artificial light on the seaside can disturb behavior.
It has a wide range of negative effects on human health, such as disturbing our circadian pattern, messing with our melatonin levels, and generally contributing to our sleeping confusion.

^{THERMAL POLLUTION}

It is defined as a sudden increase or reduction in the temperature of a natural body of water, which may be in the ocean, lake, river, or pool by human guidance.
This normally chance when a plant or facility takes water from natural riches and puts it back with changing temperature. The effect of thermal pollution includes reducing the amount of dissolved oxygen in water, which aquatic life requires, damage of larva and egg of fish in rivers, and killing some fish types.
Animals that have limited tolerance for temperature change and migration of system. Some of the important starting points of this pollution are nuclear power and electric power plants, crude oil, refineries, steel melting factories, coal-fired power plants, industries.
Which release large amounts of heat to the water bodies, led to change in physical, chemical, and biological features.