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.
Which of the following groups does not contain only biodegradable items ? | |||
| Right Option : B | |||
| View Explanation | |||
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 | |||
Which of the following are correct ? (a) 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. (b) 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. (c) Biodegradable wastes are:- Aluminium cans, Aluminium foils,Silver foils, Plastics, DDT, Radio Active waste, Rubber, Polythene bags, Computer floppy and Certain chemicals, etc. | |||
| Right Option : A | |||
| View Explanation | |||
Students / Parents Reviews [20]
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.
Shivam Rana
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
10thAbhyas is an institute of high repute. Yogansh has taken admission last year. It creates abilities in child to prepare for competitive exams. Students are motivated by living prizes on basis of performance in Abhyas exams. He is satisfied with institute.
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 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.
Barkha Arora
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.
Manish Kumar
10thMy 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
8thUsually 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...
Anika Saxena
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
9thIt 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
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
10thAbhyas 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...
Shreya Shrivastava
8thAbhyas 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
10thI 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
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
8thWhen 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.
Sharandeep Singh
7thMy 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
8thThe 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
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
10thA 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.
