Biodegradable and Non-Biodegradable Materials
Biodegradable and Non-Biodegradable Materials
Biodegradable and Non-biodegradable Materials:
Waste materials can be classified on the basis of whether they can be degraded, or broken down, by biological processes. Materials that get broken down by living organisms are called biodegradable materials. These are substances of plant or animal origin such as paper, wood, cotton, food materials and sewage. So, bio-degradable wastes can be broken down into simpler, natural substances by decomposes (saprophytes) such as bacteria and fungi. These substances are harmless and nontoxic.
Materials that cannot be broken down by living organisms are called non-biodegradable materials. Metals, plastics, DDT, detergents, certain dyes, etc., are some examples of non-biodegradable substances. Non-biodegradable materials are major pollutants. They may be chemically less active. So they remain unchanged in the environment for a long time. You have already seen how harmful materials like DDT and mercury can be Plastic bags, bottles, etc., often find their way to drains, etc. Since they do not decompose, they keep on adding up and finally, they choke the drains. Non-biodegradable detergents, dyes, etc., get into the soil and water bodies and harm the organisms living there.
In general, we should try to use biodegradable materials wherever possible to reduce the harmful effects of non-biodegradable materials. For certain things, we have a choice between biodegradable and non-biodegradable materials.
Among the most dangerous non-biodegradable waste is ______________________ | |||
| Right Option : D | |||
| View Explanation | |||
Read the passage(s) given below and answer the questions that follow: If you collect the garbage from your home and put it in separate pits covered with soil for a few days. You will find that something in the garbage rots. They form manure which is used for plants. Which of the following observations was the correct reporting about all the pits after 4 days when the soil was removed? | |||
| Right Option : D | |||
| View Explanation |
Which of the following are non-biodegradable wastes? | |||
| Right Option : D | |||
| View Explanation | |||
Students / Parents Reviews [10]
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.
Eshan Arora
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
10thIt 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
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
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
8thA 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
7thMy 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
8thAbhyas 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 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 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.
