Since, no fuel is considered as an ideal fuel, thus they do not undergo complete combustion and produce unwanted substances.These substances have harmful effect on the humans and the environment.
(a) Fuels like, wood, petrol, diesel, coal, etc. release unburnt carbon particles. These unburnt carbon particles create pollution by mixing in air. They lead to diseases of respiratory system and many other related diseases.
(b) Incomplete combustion of carbon fuels produces carbon monoxide. Carbon monoxide is a poisonous gas which may kill a person.
(c) Most of the fuels release carbon dioxide gas. Excess carbon dioxide gas in the atmosphere leads to global warming (the rise in temperature of the atmosphere of the Earth).
(d) Burning of coal and diesel produce sulphur dioxide. It is suffocating and corrosive gas. Oxides of sulphur and nitrogen dissolve in rain water and form acids. Such rain is called Acid Rain.
Acid rain is also harmful for buildings and monuments. The famous Taj Mahal has lost much of its shine because of acid rain.
Combustion of most fuels results into discharge of carbon dioxide in the atmosphere . Moreover deforestation also reduces number of trees absorbing carbon dioxide. Thus these two factors results into elevated levels of carbon dioxide in atmosphere. Carbon dioxide has the ability to absorb infrared radiation emitted by the earth and re- radiate it back. This effect is known as 'greenhouse effect '. It is speculated that if the concentration of in atmosphere increases significantly this could have the effect of increasing the average temperature of the earth.This phenomena is called global warming which leads to rise in the sea level, causing floods in the coastal areas.
Burning of coal and diesel results into discharge of sulphur dioxide into atmosphere. It irritates the nose, throat, and airways to cause coughing, wheezing, shortness of breath, or a tight feeling around the chest. Similarly, automobile exhaust contains oxides of nitrogen which leads to respiratory problems. Collectively these oxides of nitrogen and sulphur dissolves in rain water and forms corresponding nitric and sulphric acid thereby making rain water acidic leading to acid rain.
Acid rain causes acidifiation of lakes and stream and contributes to the damage of trees at high elevations (for example red spurce trees above 2,000 feet) and many sensitive forest soils. In addition, acid rain accelerates the decay of building materials and sculptures that are part of our nation's cultural heritage.
Global warming leads to a rise in the sea level causing floods in the coastal areas. One of the main reasons of global warming is __________________ | |||
Right Option : D | |||
View Explanation |
Now - a - days coal gas is used as a source of _______________ | |||
Right Option : B | |||
View Explanation |
Acid rain is very harmful for crops, buildings and soil. It is the main reason for discolouration of Taj Mahal over years. Which among the following statement is the main cause of acid rain? | |||
Right Option : C | |||
View Explanation |
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About 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.
In terms of methodology I want to say that institute provides expert guidence and results oriented monitering supplements by requsite study material along with regular tests which help the students to improve their education skills.The techniques of providing education helps the students to asses...
Usually we see institutes offering objective based learning which usually causes a lag behind in subjective examinations which is the pattern followed by schools. I think it is really a work of planning to make us students grab the advantages of modes of examination, Objective Subjective and Onli...
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Abhyas institute is one of the best coaching institute in the vicinity of Ambala cantt.The institute provides good and quality education to the students.The teachers are well experienced and are very helpful in solving the problems. The major advantages of the institute is extra classes for weak...
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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.
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My 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.