When air contains enough harmful impurities which affect the well-being of the living and the nonliving, it is said to be polluted. We can say that air pollution is caused by the presence or excess of substances which change the physical, chemical or biological characteristics of air. The substances that cause pollution are called pollutants. Pollution can be caused either by natural causes or by human beings. The pollution from natural causes are usually beyond human control. We can lessen, if not totally eliminate, man-made pollutants.
1. Diseases:: Air pollution has resulted in different respiratory disorders in humans .These includes lung cancer, bronchitis, asthma, pneumonia etc.
2. Global Warming: The increase in Earth's temperature is known as global warming.Due to emission of green house gases, there is an imbalance in the gaseous composition of the air. This has led to an increase in the temperature of the earth. This has resulted in the melting of glaciers and an increase in the sea level.
In metropolitan cities like Mumbai and Kolkata, the major atmospheric pollutants are : | |||
Right Option : A | |||
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Which of the following is not a cause for air pollution ? | |||
Right Option : C | |||
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Air pollution can be controlled by : | |||
Right Option : D | |||
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Abhyas Methodology is very good. It is based on according to student and each child manages accordingly to its properly. Methodology has improved the abilities of students to shine them in future.
It was good as the experience because as we had come here we had been improved in a such envirnment created here.Extra is taught which is beneficial for future.
My experience with Abhyas academy is very good. I did not think that my every subject coming here will be so strong. The main thing is that the online tests had made me learn here more things.
It was a good experience with Abhyas Academy. I even faced problems in starting but slowly and steadily overcomed. Especially reasoning classes helped me a lot.
It 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
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.
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.
A marvelous experience with Abhyas. I am glad to share that my ward has achieved more than enough at the Ambala ABHYAS centre. Years have passed on and more and more he has gained. May the centre flourish and develop day by day by the grace of God.
One 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.
Being 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.