Important Questions for CBSE Class 6 Science Chapter 16 - Garbage In, Garbage Out

Very Short Answer Questions: 1 Mark

1. State whether true or false. If false, correct the statement.

1. The useful products are called garbage. 

2. We generate garbage only in the cities. 

3. Some kinds of wastes can be broken down to make compost. 

4. Vermicomposting is the use of earthworm to form compost from plastic waste. 

5. All wastes should be dumped in a landfill. 

6. Paper and plastic should not be recycled. 

7. Plastic can be recycled. 

8. Dry leaves should not be burnt as they release toxic substances. 

9. Plastic can be burnt without harming the air. 

10. Papier Mache is a paste made from clay and soil. 

11. We should use less material so that we generate less garbage. 

12. Generating more garbage will make it difficult to dispose of them. 

13. Plastic can be easily decomposed. 

14. Vegetable peels can be easily decomposed. 

15. During composting powdered egg shells should be added.

Ans:

1. False. The waste material is called garbage. 

2. False. We generate garbage in our daily lives irrespective of where we live. 

3. True.

4. False. Vermicomposting is the use of earthworms to form compost from food waste. 

5. False. Wastes that cannot be recycled or composted alone should be dumped in a landfill. 

6. False. Paper and plastic should be recycled. 

7. True. 

8. True. 

9. False. Burning of plastic releases toxic fumes in the air which is dangerous to humans.

10. False. Papier Mache is a pasty substance made of clay, paper and some rice husk. 

11. True. 

12. True. 

13. False. Plastic does not decompose easily. 

14. True. 

15. True.

Short Answer Questions: 3 Marks

2. How can you reuse old paper articles for a birthday party?

Ans: Old paper can be repurposed in a variety of ways, particularly for a birthday celebration.

1. Make paper bags out of old newspapers to store candy, gifts, and other delights.

2. For the party, paper can be used to make paper hats.

3. You can colour paper and use it to wrap gifts and treats.

4. Paper may be used to make papier mache, which can be used to create intriguing items such as masks, wands, and crowns, among other things.

3. Why should you carry a cloth bag with you when you go shopping?

Ans: Cloth bags are both environmentally friendly and reusable. We use less plastic in the form of carry bags when we use cloth bags while shopping. Plastic is a non-biodegradable material whereas cloth is biodegradable. The more plastic bags we use the more garbage we make and the more difficult it is for them to recycle. Plastic decomposition emits hazardous compounds into the environment. As a result, we should utilise cloth bags to avoid the hazardous side effects of plastic use and disposal.

4. Why should you not burn dry leaves?

Ans: When dried leaves are burned, toxic gas pollutants are released. This pollutes the air and harms the health of humans, animals, and plants. Instead of burning dry leaves we should compost them to produce manure that can be used to nourish agricultural soil.

5. Why should you segregate waste into different dustbins?

Ans: The separation of garbage into distinct bins guarantees that biodegradable and non-biodegradable wastes are not mixed together. Biodegradable wastes will be composted, while non-biodegradable wastes will be recycled. Landfills will only be used for items that cannot be recycled or composted. In the absence of segregation, all wastes will collect in landfills, though composting or recycling would be a better option. Hence, waste separation at the source of production is essential.

6. Why should you consume fewer items in your daily life?

Ans: Consumption of fewer things results in less waste generation. Less garbage output means less strain on landfills and composting facilities. A reduction in waste generation also leads to better waste management. Therefore, by reducing waste output, we can save time and money on composting and recycling. As a result, waste management becomes more efficient.

Long Answer Questions: 5 Marks

7. Explain the construction and working of a landfill.

Ans: A landfill is an area of barren ground that is empty and flat. A landfill is a location where solid waste and garbage are disposed of. The materials that can be recycled and composted are separated from the waste before it is dumped in a landfill. The remaining  waste is then scattered out around the dump site. These wastes are covered with a layer of dirt. By dumping more debris and then covering it with dirt, the process is repeated. When the landfill is filled, the site is turned into a playgrounds, park, or other public space. For the next 20 years or so, no buildings are built on the landfills.

8. What is composting? How can we do vermicomposting?

Ans: The process of breaking down organic biodegradable substances into manure and compost is known as composting. 

Vermicomposting is the process of composting with red worms. To begin, we dig a shallow trench or use a box. A heavy layer of sand lines the inside of the box or pit. Above this layer of sand, a layer of dried cow dung leaves are spread out. Then, fill the pit or sand-lined box with vegetable and other food wastes. Add another layer of sand and a few drops of water, being careful not to overdo it. The red worms should now be added to the pit or box. Vegetable waste can now be thrown into the pit. In around 3-4 weeks, the red worms will break down these vegetable wastes into compost. Along with the food wastes, powdered egg shells or seashells can be added. 

9. How can we recycle paper?

Ans: The following are some ways to recycle paper:

1. Old paper is shredded into little pieces and tossed into a tub.

2. Fill the tub with water and leave it there for a day to soak and submerge the paper.

3. A thick paste is made by pounding the paper.

4. The thick paste is then applied to a wire mesh that has been attached to a frame.

5. Using patting, make the paste as thick as feasible.

6. Remove any excess water.

7. The paste layer is gently removed from the frame and laid out in the sun on a newspaper.

8. To create attractive patterns, colour, dried leaves, and other materials can be added.

The paper that has been recycled can be reused for various different purposes.

10. What measures can we adopt to minimise waste generation and improve waste management?

Ans: We can take the following steps:

1. Reduce the usage of plastic and reuse those objects.

2. Use a cloth or jute bag for shopping

3. Do not keep food in a plastic bag.

4. Properly dispose of the plastic bags.

5. Do not use plastic bags to dispose of trash.

6. Composting using vermicomposting

7. Make use of both sides of a piece of paper.

8. Reuse and recycle paper.

9. Persuade friends and family to use similar techniques.

Important Related Links for CBSE 6 Science

Conclusion

Garbage In, Garbage Out is an integral part of Class 6 Science and plays a crucial role from an examination perspective. The important questions for Class 6 Science, as discussed by NCERT, cover a wide range of topics within the subject. They also provide a concise guide to critical points and details related to the topic.

A solid understanding of each section of Class 6 Science is fundamental as it forms the basis for higher-level studies. However, this section primarily focuses on important questions within the context of Class 6 Science.