Science

Garbage In, Garbage Out

Question:

What suggestions you will give to members of locality to solve the problem of waste material?

Answer:

I will suggest the member of my locality to use biodegradable waste in preparing compost.
To take people in confidence, you should make efforts to show the path for preparing compost:
(i) You should select a comer of your locality.
(ii) Dig a pit at open place and ask all the residents to throw their kitchen waste in this pit. Cover the biodegradables in the pit with layers of soil.
(iii) Cover the pit with the mixture of soil and dung.
(iv) After 5-6 weeks, open the pit and show it to the resident of your colony. Also explain that their disposed off material has converted into compost manure.
(v) You can convince RWA (Resident Welfare Associations) to use this manure for colony parks and also in plant pots kept in individual houses for , beautification.

 

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Garbage In, Garbage Out

Q 1.

Give example of material that can be used again.

Q 2.

Give example of material that can be used again.

Q 3.

What type of garbage is thrown in green bins?

Q 4.

What do you mean by composting?

Q 5.

Explain the term vermicomposting.

Q 6.

Do you think it is better to use compost instead of chemical fertilisers? Why?

Q 7.

What are the uses of plastic?

Q 8.

What will happen if garbage is left open in bin?

Q 9.

Observe the bins and waste material heaps and suggest what materials can be used for preparing handicrafts materials.

Q 10.

Can you make something useful of these waste material?Powder containers, cold-drink cans, plastic bottles, shoe-box.

Q 11.

What suggestions you will give to members of locality to solve the problem of waste material?

Q 12.

List waste products produced from an industry.

Q 13.

Waste may contain the following things:

Q 14.

Why should we be careful in using plastic bags to store cooked food items?

Q 15.

Define composting.

Q 16.

What can we do to reduce overuse of plastics?

Q 17.

Explain one wag of recycling of waste paper.

Q 18.

(a) Collect pieces of different kinds of paper. Find out which of these can be recycled,
(b) With the help of a lens look at the pieces of paper you collected for the above question. Do you see any difference in the material of recycled paper and a new sheet of paper?

Q 19.

(a) Collect pieces of different kinds of paper. Find out which of these can be recycled,
(b) With the help of a lens look at the pieces of paper you collected for the above question. Do you see any difference in the material of recycled paper and a new sheet of paper?

Q 20.

What is a landfill?  

Q 21.

Discuss:
(a) Is garbage disposal the responsibility only of the government?
(b) Is it possible to reduce the problems relating to disposal of garbage?

Q 22.

(a) Which kind of garbage is not converted into compost by the redworms?
(b) Have you seen any other organism besides redworms, in your pit? If yes, try to find out their names. Draw pictures of these.

Q 23.

What are blue coloured bins used for?

Q 24.

What are the demerits of plastic?

Q 25.

How can the non-useful component be reused?

Q 26.

What do we do to the useful components (biodegradable) of the garbage?

Q 27.

What are redworms?

Q 28.

List the steps for preparing vermicompost.

Q 29.

Municipality provides two types of dustbins for garbage collection. One coloured with blue colour and other with green colour. From following wastes which you will put in the which dustbin?
Plastic materials, metals and glass items, wastes of plants and animals, peels of fruits and vegetables, dried leaves and twigs, remains of meat like flesh and hopes.

Q 30.

Can you replace the following packaging material with those which can be recycled or reused.
(1) Milk packets of polythene.
(2) Dry eatables in polythene.
(3) Gift items packed with shiny material.
(4) Glass tumblers packed in thermocole box.

Q 31.

What is papier-mache? How does it help us?

Q 32.

(a) What do you do with the left over food at home?
(b) If you and your friends are given the choice of eating in a plastic plate or a banana leaf plotter at a party, which one would you prefer and why?

Q 33.

Why should we not bum dried plant leaves and husk? What is the best way to get rid of them?

Q 34.

List the biodegradable and non-biodegradable waste products in your school What are the best ways to get rid of this garbage?

Q 35.

(a) Collect different kinds of packaging material. What was the purpose for which  each one mas used? Discuss in groups.
(b) Give an example in which packaging could have been reduced.
(c) Write a story on how packaging increases the amount of garbage.

Q 36.

We should not add wastes containing salts, pickles, oil, vinegar, meat and milk products in vermicomposting pit to feed the redworms. Why?