Biodegradable Pollutants
Biodegradable Pollutants
A pollutant is a substance or energy introduced into the environment that has undesirable effects, or adversely affects the usefulness of a resource. The various types of pollutants present in environment which have negative effect on environment. Some types of pollutants are : water pollutants (chemical, pesticides,sewage lines,etc), soil pollutants (pesticides,lead,solid waste, etc), air pollutants(fossil fuels), light pollutants (excess light), noise pollutants (loudspeakers).
It is of two types: biodegradable and non - biodegradable pollutants.
Non-biodegradable Pollutants : Those waste materials which cannot be broken down into non poisonous or harmless substance in nature by bacteria, such waste materials are called as non-biodegradable wastes. Few non-biodegradable wastes are:- Aluminium cans, Aluminium foils,Silver foils, Plastics, DDT, Radio Active waste, Rubber, Polythene bags, Computer floppy and Certain chemicals, etc.
Biodegradable Pollutants : Those waste materials that can be broken down into non-poisonous substances in nature due to action of bacteria and other microbes (organisms), in due course of time are called biodegradable wastes. Biological wastes include dead plants and animals, animal bones, animal excreta, cow-dung, urine, paper, wood, grains, cloth, leather goods, cardboard, cotton, plant fibres, newspaper, wool, etc.
The wastes that are poisonous before degradation or break down, after the break-down they get converted into non-poisonous substances and therefore, they do not disturb the ecological balance. Serious problems arise only when these start accumulating as a result of more deposition and slow decomposition.
Indoor Air Pollution : Most of us are ignorant about the presence of indoor air pollution. It is caused by the items of daily use in our homes. It may be caused by the use of paints, aerosols, acids for cleaning toilets, sprays and deodorants, carpet cleaners (chemical used for cleaning carpets), objects made from plastics, smoking tobacco and many more things. Therefore, we should also be very careful about the causes and prevention of indoor air pollution.
The waste materials that can be broken down into non-poisonous substances in nature due to action of bacteria and other microbes (organisms), in due course of time are called __________________ . | |||
| Right Option : B | |||
| View Explanation | |||
DDT is a _________________________ | |||
| Right Option : A | |||
| View Explanation | |||
Which of the following are correct ? (a) Chemical, pesticides,sewage lines,etc are examples of water pollutants (b) Pesticides,lead,solid waste, etc are example of air pollutants. (c) Waste materials that can be broken down into non-poisonous substances in nature due to action of bacteria and other microbes are called biodegradable wastes. | |||
| Right Option : C | |||
| View Explanation | |||
Students / Parents Reviews [10]
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.
Archit Segal
7thBeing 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
8thOne 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
10thAbhyas 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
10thIt 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.
Eshan Arora
8thAbout 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 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.
Hiya Gupta
8thMy experience was very good with Abhyas academy. I am studying here from 6th class and I am satisfied by its results in my life. I improved a lot here ahead of school syllabus.
Ayan Ghosh
8thIt 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.
Cheshta
10thAbhyas 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.
