Which of the following activities does not reflect responsible behaviour with regard to waste disposal?

1

(a)

Goods carried in paper bags or cloth bags

(b)

Waste collected in polythene bags for disposal

(c)

Waste separated into those that degrade and those that do not

(d)

Making handicrafts with used up notebooks

Out of the following materials which one cannot be recycled?

1

(a)

Book

(b)

Wooden stool

(c)

Mirror

(d)

Tin can

Which of these is biodegradable?

1

(a)

Cotton

(b)

Paper

(c)

Dead plants

(d)

All of these

Kitchen waste should be

1

(a)

recycled

(b)

incinerated

(c)

composted

(d)

dumped in landfills

Hospital waste is usually infectious. Select the best way to .dispose them.

1

(a)

Recycled

(b)

Incinerated

(c)

Composted

Among the following items from waste, which item can be recycled?

1

(a)

Waste paper

(b)

Leather shoes

(c)

Animal waste

(d)

Kitchen waste

Out of these, which one is a non-biodegradable waste?

1

(a)

Paper

(b)

Faecal matter

(c)

Aluminium foil

(d)

Cotton

Materials that can be recycled are collected in

1

(a)

red bins

(b)

blue bins

Which one of the following items will add to garbage?

1

(a)

Wrapper of a biscuit pack

(b)

Tin can of a cold drink

(c)

Syringe used by a doctor

(d)

All of the above

An organism that can be used for making manure is

1

(a)

earthworms

(b)

housflies

(c)

eagle

(d)

crow

Which of the following can be recycled?

1

(a)

Waste paper

(b)

Kitchen waste

(c)

Leather

(d)

Animal waste

Low lying area where city garbage is dumped is know as:

1

(a)

Pond

(b)

Dust bin

(c)

Landfill

(d)

None of these

Earthworm is a farmer's

1

(a)

Enemy

(b)

Friend

(c)

Intruder

(d)

None of these

Which of the following is a bio-degradable waste?

1

(a)

Chalk box

(b)

Faeces and urine

(c)

Pencil scrap

(d)

All of these

Which of the following is a non-biodegradable waste?

1

(a)

Broken glass

(b)

Plastic container

(c)

Wrapper of tea, coffee

(d)

All of these

Recyclable material is collected in:  

1

(a)

Green bin

(b)

Yello.wbin

(c)

Blue bin

(d)

All of these

The method of preparing compost with the help of earthworms is called:

1

(a)

composting

(b)

vermicomposting

(c)

manuring

(d)

decomposing

If you dump kitchen waste in a pit, it may, after some time :

1

(a)

convert into. compost

(b)

convert into. vermicompost

(c)

remain as such

(d)

remain forever in its dried form

Which one of the following items has the capacity to cause floods?

1

(a)

Paper

(b)

Plastic bags

(c)

Cotton cloth

(d)

Earthen pots

What process involves reclaiming land for other purpose?

1

(a)

Composting

(b)

Recycling

(c)

Landfilling

(d)

Refusing

The waste generated by people at homes is called__________

1

(a)

household waste

Wastes that contain substances harmful for human health and the environment are called___________

1

(a)

toxic wastes

For recycling paper, the series of processes starts with___________

1

(a)

sorting

The living creatures used for composting are called__________

1

(a)

decomposers

It is important to have more than one waste bin at home to____________ the garbage.

1

(a)

segregate

Garbage disposal is not an easy process.

1

(a) False

(b) True

Even if a piece of plastic is left underground for many years, it will not decay.

1

(a) False

(b) True

Waste that is generated from living things is called non-biodegradable waste.

1

(a) True

(b) False

Toxic wastes have an adverse effect on nature and wildlife.

1

(a) False

(b) True

Plastic is freely available, therefore it is wise to use and throw plastic bags very frequently.

1

(a) True

(b) False

The waste materials produced after household work are stored at what place in our homes?

2

(a)

Certain wastes are difficult to dispose. Name two such things which create difficulties during disposal.

2

(a)

What is paper mash?

2

(a)

Burning of plastic waste is not recommended. Why?

2

(a)

Wastes containing salt, pickles, oil, meat and milk products should not be added in vermicomposting pit as a feed for redworms. Why?

2

(a)

Should the containers used for storing harmful substances be used to make plastic bags?

2

(a)

Give an example in which packaging could have been reduced.

2

(a)

Define vermicomposting.

2

(a)

Why should animal products not be used in vermi-composting ?

2

(a)

Some things can be recycled while some can not. Why should we not throw away any thing that can be recycled ?

2

(a)

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

3

(a)

Paheli was writing a letter to her friend. She crumpled and threw the first draft of her letter on the floor as it had become untidy. Similarly, she crumpled and threw 6 more papers on the ground. In the end, she picked them up and put them in a polythene bag and threw it on the road outside her house.
Do you think, Paheli's action were responsible? What would you have done if you were in her place?

3

(a)

To what use can you put the following kinds of garbage and how?
(a) Rotting smelly garbage
(b) Dry leaves collected in a garbage
(c) Old newspapers

3

(a)

Beera, a farmer would clear his field everyday and burn dry leaves fallen on the ground.After some time, he found that those people living in huts near his field were suffering from cough and breathing problems.
(a) Can you explain, why?
(b) Also suggest an environment friendly to dispose the dry leaves.

3

(a)

Why should we not burn plastic items?

3

(a)

Suggest any two ways to minimise the harmful effects of plastics.

3

(a)

Correct the definitions of certain terms given below by changing only one word.
(a) Compost Substances converted into manure for use in industries.
(b) Landfill Garbage buried under water in an area.
(c) Recycling Reuse of unused material in the same or another form.

3

(a)

Give some advantage of waste recycling.

3

(a)

While passing through a street, Sohan saw some safai karamcharis were burning the waste paper and dry leaves near the municipal dustbin.
(i) Why were they burning the waste paper and dry leaves?
(ii) What was evolved on burning these things?
(ill) Suggest any other method to reduce wastes like leaves.
(iv) Name one method that saves trees or plant

3

(a)

What is waste management? Is garbage disposal the responsibility of the government?

3

(a)

Beautiful handcrafted articles like boxes and toys are made up of paper pulp in our country. Can you explain how paper pulp which is made from paper can be used to make hard boxes and other articles?

4

(a)

What happens when
(a) cooking medium is made to flow down a drain?
(b) insecticides, motor oil, paints are poured down the drain?
(c) tea leaves, cotton swabs and old soft toys are thrown into the drain?

4

(a)

  Rahul's friend has his birthday tomorrow. Since, he was busy so he could not buy a present for him. He looked around and found papers not in usable condition.
He used them and prepared a card, a diary of colourful pages and a photo frame as gifts for hit friend.
All his friends when saw them were surprised and so was his friend. All of them asked Rahullots of question about his gifts.
(a) Papers are which type of waste?
(b) What is the name of the process used by Rahul'
(c) List a few benefits of this process.
(d) Can all types of paper be treated by this method?
(e) What values do you observe in Rahul?

4

(a)

What is composting ? Do you think it is better to use compost instead of chemical fertilizers? Why?

4

(a)

Write the main drawbacks of plastics.

4

(a)