Students can Download Chapter 16 Garbage In, Garbage Out Questions and Answers, Notes Pdf, KSEEB Solutions for Class 6 Science, Karnataka State Board Solutions help you to revise complete Syllabus and score more marks in your examinations.
Karnataka State Syllabus Class 6 Science Chapter 16 Garbage In, Garbage Out
Class 6 Science Garbage In, Garbage Out NCERT Textbook Questions and Answers
(a) Which kind of garbage is not converted into compost by the red worms.
(b) Have you seen any other organisms besides red worms, in your pit ? If yes, try to find out their names, Drawa picture of these.
(a) The garbage which are non – biodegradable in nature like iron strips, plastics, poly bags etc are not converted into compost by the red worms.
(b) Yes, these organisms includes maggots, flies, cockroaches etc.
(a) Is garbage disposal the responsibility only of the government ?
(b) Is it possible to reduce the problems relating to disposal of garbage ?
(a) Along with government and local muncipality corporations, it is also the duty of every citizen to help in garbage disposal. A clean environment is necessary to keep us healthy and also to avoid spread of diseases. We should throw garbage at proper places, such as dustbins so that safai karmcharis can collect the garbage easily.
(b) It is possible to reduce the problems relating to disposal of garbage, if we adopt the following means:
- The garbage should be thrown at proper places. It should not be thrown on streets, roads, parks etc.
- The part of the garbage that can be reused should be seperated from the one that cannot be used. The non – useful components should be disposed off at landfill areas.
- Follow the rule of 3 R’S, reduce, recycle and reuse.
a) What do you do with the left over food at home ?
Left over food at home along with other kitchen waste like vegetable peels, paper are dumped into compost pit to convert them into manure. Later on the manure is used to grow plants.
b) If you and your friends are given the choice of eating in a plastic plate or a banana leaf platter at a party, which one would you prefer and why?
We will select banana leaf platter because it can be easily converted into manure by composting.
Plastic plate can be recycled but in this process it gives out harmful gases which pollute the environment. Plastic items cannot be converted into manure by composting.
a) Collect pieces of different kinds of paper. Find out which of these can be recycled ?
Pieces of paper obtained from newspaper, note books, magazines etc. can be recycled. Plastic coated and shiny paper cannot be recycled easily.
b) With the help of a lens look at the pieces of paper you collected in the above question. Do you see any difference in the material of the recycled paper and a new sheet of paper ?
The surface of recycled paper is rough whereas surface of new sheet of paper is smooth.
a) Collect different kinds of packaging material For what purpose each one was used? Discuss in groups.
Different kinds of packaging materials and its uses:
- Paper packaging material: Mostly used for packaging of light and durable and hard products like soaps, blades, chocolates etc.
- Plastic packaging materials: Used for liquid items and medium weighted too like oils, drinking water bottles, shampoo etc.
- Poly bags: Used for carrying groceries, vegetables etc.
- Clothes and jute packaging materials : Used for heavy weighted as well as medium weighted too, like carrying clothes, grains, vegetables, fruits etc.
b) Give an example in which packaging could have been reduced.
If people started carrying their own carry bags for buying groceries and vegetables and fruits then there will be no need for packing those materials by using plastics and thus the packaging could be reduced.
c) Write a story on how packaging increases the amount of garbage.
Packaging increases the amount of garbage as it is quite useless after the product is delivered and utilised. These useless packaging materials are thrown away and just add loads to the garbage. Some of them are made of plastics and are non – biodegradable and are hazardous to the environment.
Do you think it is better to use compost instead of chemical fertilizers. Why?
Yes, I think it is better to use compost instead of chemical fertilizer because
- It is environment friendly and add natural fertility to the soil.
- It doesn’t have adverse effect on nature and creates no pollution.
- The food items grown are also healthy and do not contain any chemicals.
- It is cheaper than the chemical fertilizer.
- Soil will never loss its fertility if we use compost.
Class 6 Science Garbage In, Garbage Out Additional Important Questions and Answers
I. Fill in the blanks
1) Solid waste generated in our home is called domestic waste. It is commonly called as Garbage
2) Landfills are the large open areas used to dispose solid waste.
3) Red worms are called farmer’s friend and are used in vermi composting.
4) Sewage is a domestic liquid waste.
5) The rotting and conversion of some materials into manure is called composting.
II. Say whether true or false
1) Compost is an organic matter used as fertilizer. True
2) Old news papers cannot be recycled. False
3) Empty plastic bottles can be reused. True
4) DDT is a bio degradable substance. False
5) Burning of leaves produces harmless gases. False
III. Give two examples for the following
Vegetables and paper.
Non – biodegradable wastes
Plastic and Fertilizers
Paper and glass
Plastic and cardboards
Fruit peels and plastic bags
IV. Answer the following questions:
What is a landfill?
A low – lying open area is called landfills.
What are blue coloured bins used for?
Blue bins are used for collecting materials Composting into manure.
What are red worms?
Red worms are a type of earthworms which help in preparing compost from the kitchen wastes and parts of plants or animals.
We should not add wastes containing salts, pickles, oil, vinegar, meat and milk products in vermicomposting pit to feed the red worms. Why?
Addition of substances such as salts, oil, pickles, vinegar, meat and milk products
to vermicomposting pit causes growth of disease causing small organisms. They may cause harm to red worms and hinder in preparation of vermicompost.
List the products produced from an industry?
- Empty containers such as glass bottles, plastic articles, wrapper.
- Plastic bags.
- Broken things, iron or other metals.
What will happen if garbage is left open in a bin ?
- Garbage will rot and bad smell will spread all around the surroundings.
- Garbage will become breeding spot for flies, mosquitoes and other diseases causing small organisms.
- Due to flies, mosquitoes and other organisms many diseases will spread in the community.
- Rotting garbage may cause air pollution and spread of respiratory disease such as breathing problems.
List out waste things ?
- Empty bottles
- Used cotton
- Injection bottles
- Used bandages
- Pieces of plaster
- Tablet wrapper
- Empty paper box
- Polythene bags
- Left over food items
- Peels of fruits and vegetables
List the biodegradable and non – biodegradable waste products in your school. What are the best ways to get rid of this garbage ? biodegradable wastes.
- Paper container.
- Chalk boxes.
- Pencil scraps.
- Feces and urine.
- Loose and tom waste paper of exercise note books and diaries.
- Fallen leaves and twigs.
- Fruit peels and flower waste.
Non – Biodegradable wastes
- Broken glass wares.
- Plastic & geometrical instruments.
- Plastic and polythene containers.
- Wrapper of toffees, aluminium foil.
- Broken iron wire pieces.
Disposal of wastes Biodegradable garbage can be put in a pit made in one comer of the school compound. Cover the garbage with soil, spray some water. When this pit is full of degradable items cover it with a mixture of dung and clay for a few weeks. After a few weeks odour stops coming out from the pit. It indicates that all the degradable material has been converted into compost manure.
The Non-biodegradable garbage can be sold for recycling to kabari or can be dumped in a landfill.