Sources of Air Pollution
Sources of Air Pollution
Air pollution consists of chemicals or particles in the air that can harm the health of humans, animals, and plants. It also damages buildings. Pollutants in the air take many forms. They can be gases, solid particles, or liquid droplets.
Sources of Air Pollution :
Air pollution can be caused by two sources: Natural and Man-made
Natural Sources :
Natural sources of pollution include dust carried by the wind from locations with very little or no green cover, gases released from the body processes of living beings (Carbon dioxide from humans during respiration, Methane from cattle during digestion, Oxygen from plants during Photosynthesis).
Natural Causes of Air Pollution are :
1. Winds and storms: Whenever there are strong winds and storms, huge amounts of dust and sand pollute the air. Pollutants can mobilize from the ground and transport them over large areas.
2. Explosions and Eruption of volcanoes: A volcano is an opening in the earth's crust through which lava, volcanic ash, gases disappear. Beneath a volcano, liquid magma containing dissolves gases rises through cracks in the Earth's crust. Volcanic eruptions emit a series of toxic gases as well as particulate matter but are usually restricted to localized areas. The release of harmful gases results in air pollution.
3. Forest fires: A forest fire is an unplanned, unwanted, uncontrolled fire in an area of combustible vegetation. Naturally occurring wildfires are most frequently caused by lighting. There are also volcanic, meteor, and coal seam fires, depending on the circumstance.Humans careless actions like cigarette or bidi, electric spark or any source of ignition when comes in contact with the dry vegetation results in forest fire. A huge amounts of smoke and ash are released into the air that causes air pollution.
4. Marshlands: A marsh is a type of wetland or an area of land where water covers the ground for a long period of time. A large amount of methane gas produced in these areas due to the activity of anaerobic microbes is also one of the main causes of pollution.
5. Pollen grains and fog: Pollen grains are microscopic structures that carry the male reproductive cell of plants. The release of a large number of pollen grains in the atmosphere causes conditions like pollen allergy in different organisms.
Fog is a visible aerosol consisting of tiny droplets or ice crystals suspended in the air at or near Earth's surface. Fog is one of the main causes of air pollution. Gases like sulfur dioxide, soot, and benzene, which form smoke react with the fog to form chemical compounds that form smog. Smog can cause eye irritation, coughing, difficulty breathing, congestion, and other respiratory problems.
Which of the following are correct : (a) Explosions and Eruption of volcanoes can cause air pollution. (b) A large amount of methane gas produced in Marshlands due to the activity of anaerobic microbes . (c) The release of a large number of pollen grains in the atmosphere causes conditions like pollen allergy in different organisms. | |||
| Right Option : D | |||
| View Explanation | |||
Which of the following substances is not an atmospheric pollutant? | |||
| Right Option : B | |||
| View Explanation | |||
Man made source of air pollution is _________________ | |||
| Right Option : B | |||
| View Explanation | |||
Students / Parents Reviews [20]
My experience with Abhyas Academy has been very good. When I was not in Abhyas whenever teacher ask questions I could not speak it confidently but when I came in Abhyas, my speaking skills developed and now I am the first one to give the answer of teachers question.
Upmanyu Sharma
7thOne of the best institutes to develope a child interest in studies.Provides SST and English knowledge also unlike other institutes. Teachers are co operative and friendly online tests andPPT develope practical knowledge also.
Aman Kumar Shrivastava
10thWe started with lot of hope that Abhyas will help in better understnding of complex topics of highers classes. we are not disappointed with the progress our child has made after attending Abhyas. Though need to mention that we expected a lot more. On a scale of 1-10, we would give may be 7.
Manya
8thBeing a parent, I saw my daughter improvement in her studies by seeing a good result in all day to day compititive exam TMO, NSO, IEO etc and as well as studies. I have got a fruitful result from my daughter.
Prisha Gupta
8thIt has a great methodology. Students here can get analysis to their test quickly.We can learn easily through PPTs and the testing methods are good. We know that where we have to practice
Barkha Arora
10thAbout Abhyas metholodology the teachers are very nice and hardworking toward students.The Centre Head Mrs Anu Sethi is also a brilliant teacher.Abhyas has taught me how to overcome problems and has always taken my doubts and suppoeted me.
Shreya Shrivastava
8thMy experience with Abhyas academy is very nice or it can be said wonderful. I have been studying here from seven class. I have been completing my journey of three years. I am tinking that I should join Abhyas Academy in tenth class as I am seeing much improvement in Maths and English
Hridey Preet
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Cheshta
10thAbhyas institute is one of the best coaching institute in the vicinity of Ambala Cantt area. The teachers of the institute are well experienced and very helpful in solving the problems of the students.The good thing of the institute is that it is providing extra classes for the students who are w...
Aman Kumar Shrivastava
10thAbhyas academy is great place to learn. I have learnt a lot here they have finished my fear of not answering.It has created a habit of self studying in me.The teachers here are very supportive and helpful. Earlier my maths and science was good but now it has been much better than before.
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Hiya Gupta
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Ayan Ghosh
8thI have spent a wonderful time in Abhyas academy. It has made my reasoning more apt, English more stronger and Maths an interesting subject for me. It has given me a habbit of self studying
Yatharthi Sharma
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Yogansh Nyasi
7thAbhyas is a complete education Institute. Here extreme care is taken by teacher with the help of regular exam. Extra classes also conducted by the institute, if the student is weak.
Om Umang
10thAbhyas is good institution and a innovative institute also. It is a good platform of beginners.Due to Abhyas,he has got knoweledge about reasoning and confidence.My son has improved his vocabulary because of Abhyas.Teacher have very friendly atmosphere also.
Manish Kumar
10thThe experience was nice. I studied here for three years and saw a tremendous change in myself. I started liking subjects like English and SST which earlier I ran from. Extra knowledge gave me confidence to overcome competitive exams. One of the best institutes for secondary education.
Aman Kumar Shrivastava
10thMy experience with Abhyas is very good. I have learnt many things here like vedic maths and reasoning also. Teachers here first take our doubts and then there are assignments to verify our weak points.
Shivam Rana
7thWhen I have not joined Abhyas Academy, my skills of solving maths problems were not clear. But, after joining it, my skills have been developed and my concepts of science and SST are very well. I also came to know about other subjects such as vedic maths and reasoning.
