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Published on: 24/10/2025
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Questions + Answers key
Take MCQ Science Test

1.
What is waste management? Is garbage disposal the responsibility of the government?
2.
Give some advantage of waste recycling.
3.
Suggest any two ways to minimise the harmful effects of plastics.
4.
Garbage is collection of various substances considered unusable. Name any three substances that constitute garbage
5.
Do you think, it is better to use compost instead of chemical fertilisers? Why?
6.
Why should animal products not be used in vermi-composting ?
7.
Give an example in which packaging could have been reduced.
8.
Wastes containing salt, pickles, oil, meat and milk products should not be added in vermicomposting pit as a feed for redworms. Why?
9.
We classify some materials as wastes and throw them. How do you categorise these materials as waste?
10.
Give three examples of materials that can be used again.
11.
Some waste materials can be reused in different forms. Can you make something useful with these waste materials-powder container, cold drink cans, plastic bottles, shoe boxes.
12.
Burning of leaves is harmful. Why? Is burning of leaves considered illegal in India. If no, do you suggest it should be made illegal?
13.
What process involves reclaiming land for other purpose?
Composting
Recycling
Landfilling
Refusing
14.
Select the process that can not be included in waste management:
Landfilling
Composting
Recycling
Disposal after single use
15.
If you dump kitchen waste in a pit, it may, after some time :
convert into. compost
convert into. vermicompost
remain as such
remain forever in its dried form
16.
Which of the following is used for making compost?
Tapeworm
Hookworm
Redworm
None of these
17.
Which of the following is a landfill park?
Vrindavan Garden, Mysore
Rock Garden, Chandigarh
Indraprastha Park, Delhi
All of these
18.
The steps required for conversion of kitchen garbage into manure are given below in a jumbled form.
i) Put garbage in a pit
ii) Cover the bottom of the pit with sand.
iii) Cover the jIlit loosely with a gunny bag or grass
iv) Add worms
Which of the following shows the correct sequence of the above steps?
(ii), (i), (iv), (iii)
(i), (ii), (iii), (iv)
(ii), (iv), (i), (iii)
(iv), (i), (ii), (iii)
19.
Materials that can be recycled are collected in
red bins
blue bins
20.
Some materials present in waste can rot. This rotting is carried out by
microbes
insects
ants
Amoeba
21.
Kitchen waste should be
recycled
incinerated
composted
dumped in landfills
22.
Which of the following activities does not reflect responsible behaviour with regard to waste disposal?
Goods carried in paper bags or cloth bags
Waste collected in polythene bags for disposal
Waste separated into those that degrade and those that do not
Making handicrafts with used up notebooks
23.
The living creatures used for composting are called__________
24.
The waste generated by people at homes is called__________
25.
We need to generate __________waste.
26.
An example of recycling of waste is_______________
27.
Burning of leaves produces______________
28.
What should you do with the leftover food at home?
29.
What is garbage?
30.
Which type of paper is difficult to be recycled?
31.
What should be done to agricultural waste and cow dung?
32.
What is the effect of solid waste?
1.
Waste management is the collection, transportation, processing, recycling and reusing of the usable waste materials. Proper disposal of garbage should be a concern of every citizen and not just of the government. Each and every individual must reduce activities that pollute the environment. A lot of waste is generated from homes, offices, schools, hospitals, etc. It includes food waste, paper, plastic, glass, metal, etc. Therefore, it is required that every individual must reduce the production of wastes and must help in the proper disposal of wastes.
2.
Waste recycling has some significant advantages. It:
(i) leads to less utilization of raw materials.
(ii) reduces environment impacts arising from waste treatment and disposal.
(iii) makes the surroundings cleaner and healthier.
(iv) saves our landfill space.
(v) saves money.
(vi) reduces the amount of energy required to manufacture new products.
3.
The two ways to minimise the harmful effects of plastics are
(i) Reuse of plastic bags and containers will minimise the number Of plastic bags.
(ii) Avoid burning of plastics as they release harmful gases in the atmosphere.
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.
4.
The following wastes constitute garbage:
(i) Kitchen waste
(ii) Domestic waste
(iii) Plastic bags
5.
Yes, it is better to use compost instead of chemical fertilisers. The reasons are as follows:
(i) Compost is ecofriendly, while chemical fertilisers destroy the natural composition of soil by adding unwanted chemicals into the soil.
(ii) Production of compost is easy and harmless whereas production of chemical fertilisers is a costly process.
(iii) Chemical fertilisers cannot be decomposed by natural methods hence, create pollution of soil and water.
6.
Animal products should not be used in vermicomposting because if we put animal products and pickles, oil,vinegar etc., they enhance the growth of disease causing bacteria which may cause the red worms to die.
7.
The usage of plastic bags must be reduced as packaging of cooked food items in plastic bags might affect our health. Also, plastic bags are nonrecyclable and burning of plastic bags may release harmful gases that can cause many diseases.
8.
Addition of above mentioned substances cause the growth of disease-causing organisms and these may harm the worms as well. So, in this way, these substances hinder the preparation of vermicompost
9.
Any material which cannot be used in the form in which it is produced is called as waste.
10.
Plastics, metals and glasses can be recycled and reused.
11.
(i) Powder container The elongated metallic powder container can be used as pen-pencil stand or to grow money plant, etc. The plastic containers should be sent to plastic industries for recycling.
(ii) Cold drink cans For storing liquids, growing herbaceous plants like tulsi, money plant, small flowering plants.
(iii) Plastic bottles These can also be used for growing plants, storing liquids, etc.
(iv) Shoe box For making small red cross box, storing pen-pencils and other small articles.
12.
Burning of leaves leads to air pollution and release of toxic gases which can cause diseases in living organisms.
No, burning of leaves is not illegal but it should be because leaves can be disposed in a very useful manner like compost.
It also releases harmful components in air on burning which leads to respiratory diseases and cancer in all.
13.
(b)
Recycling
14.
(d)
Disposal after single use
15.
(a)
convert into. compost
16.
(c)
Redworm
17.
(c)
Indraprastha Park, Delhi
18.
(a)
(ii), (i), (iv), (iii)
19.
(b)
blue bins
20.
(a)
microbes
21.
(c)
composted
22.
(b)
Waste collected in polythene bags for disposal
23.
( )
decomposers
24.
( )
household waste
25.
( )
less
26.
( )
paper recycle
27.
( )
toxic gases
28.
( )
Leftover food at home should be dumped into the compost pit.
29.
( )
Garbage is an unwanted or undesired material or substance. It is also referred to as rubbish, trash, waste or junk depending upon the type of material.
30.
( )
Plastic wastes, animal wastes and waste food are used for composing.
31.
( )
It must be used for running a biogas plant.
32.
( )
If not handled properly, they give foul smell and give an ugly look to natural beauty.
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