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Science [1 Marks Each] M.C.Q.

Garbage In, Garbage Out · MP Board (MPBSE) STD 6 (Madhya Pradesh - English Medium). 160 questions.

Questions · Page 3 of 4

[1 Marks Each] M.C.Q.

MCQ 1011 Mark
Read the information about a substance $'P'$ given bel
$P$
Can be recycled
Bio-degradable
Non-toxic and useful
Which of the following substance is $'P?$
  • ✓
    Paper
  • B
    Glass bottle
  • C
    Metal can
  • D
    Plastic bottle
Answer
Correct option: A.
Paper
Paper is made from wood pulp of trees. It is biodegradable, useful and can be recycled into paper once again. Hence, paper has all the qualities given for $P.$
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MCQ 1021 Mark
If you have to recycle vegetable waste, fruit peels, bones and dry flowers, you will
  • ✓
    Make compost from them.
  • B
    Burn them.
  • C
    Use them in landfills.
  • D
    Throw them in a lake, river or sea.
Answer
Correct option: A.
Make compost from them.

Composting is one of the methods of recycling the biodegradable wastes.

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MCQ 1031 Mark
The process of preparing compost from biodegradable waste using red worms is called:
  • A
    Composting
  • ✓
    Vermi-composting
  • C
    Recycling
  • D
    Reusing
Answer
Correct option: B.
Vermi-composting
Vermi-composting
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MCQ 1041 Mark
DIRECTIONS: Read the passage(s) given below and answer the questions that follow Passage $-$ A type of earthworm called red worm is used for composting. This method of preparing compost with the help of red worms is called vermi composting. Red worms need which of the following for survival?
  • A
    Very hot environment.
  • B
    Very cold environment.
  • ✓
    Moisture.
  • D
    None of the above is correct.
Answer
Correct option: C.
Moisture.
Moisture.
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MCQ 1051 Mark
Which of the following processes can be done to reuse used materials?
  • A
    Production
  • B
    Reduction
  • ✓
    Recycle
  • D
    Composting
Answer
Correct option: C.
Recycle

Recycling process is helpful in using non$-$biodegradable substances to be reused.

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MCQ 1061 Mark
Which of the following takes the least time to decompose?
  • A
    Pen
  • B
    Book
  • ✓
    Grapes
  • D
    Rain coat
Answer
Correct option: C.
Grapes

Organic wastes take least time to decompose.

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MCQ 1071 Mark
What happens when waste materials is/ are $NOT$ properly disposed of?
  • A
    Pollution of water sources such as rivers and ponds.
  • B
    Pollution of soil.
  • C
    Breeding of disease - carrying vectors.
  • ✓
    All of these.
Answer
Correct option: D.
All of these.

If waste material is not properly disposed it leads to water and soil pollution and it becomes a breeding place for disease causing organisms.

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MCQ 1081 Mark
What is vermin composting?
  • A
    It is a method of preparing compost.
  • B
    It is a method of preparing compost with the help of organisms.
  • ✓
    It gives a vermilion colored compost.
  • D
    All of the above are correct.
Answer
Correct option: C.
It gives a vermilion colored compost.
It is a method of preparing compost with the help of organisms.
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MCQ 1091 Mark
How is garbage handled at the landfill site?
  • A
    It is spread as such over the landfill site.
  • ✓
    It is separated into useful and non-useful components and then spread over the landfill site.
  • C
    Both the above are correct.
  • D
    None of the above is correct.
Answer
Correct option: B.
It is separated into useful and non-useful components and then spread over the landfill site.
It is separated into useful and non-useful components and then spread over the landfill site.
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MCQ 1101 Mark
Which of the following waste cannot be used for making manure.
  • A
    Dead animals
  • B
    Egg shells
  • C
    Left over food
  • ✓
    Steel broken vessel
Answer
Correct option: D.
Steel broken vessel
Steel broken vessel
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MCQ 1111 Mark
Which of these articles cannot be recycled and used again?
  • A
    Newspaper
  • ✓
    Banana peel
  • C
    Raincoat
  • D
    Plastic bags
Answer
Correct option: B.
Banana peel

Banana peel is a biodegradable food substance and it cannot be recycled.

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MCQ 1121 Mark
Solid kitchen wastes can be:
  • A
    Composted.
  • B
    Vermi-composted.
  • C
    Dumped in pit.
  • ✓
    All of the above.
Answer
Correct option: D.
All of the above.

Kitchen wastes are mostly organic wastes. Hence, should be converted to compost by dumping in a pit.

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MCQ 1131 Mark
Indiscriminate disposal of plastic wastes can cause environmental pollution. Which of the following statements is/ are true?
  • A
    Plastics are made by chemicals.
  • B
    Plastics are non-biodegradable.
  • C
    Plastics produce toxic gases when burnt.
  • ✓
    All of these
Answer
Correct option: D.
All of these
Plastics are made up of strong chemicals, when burnt it produce toxic gases and is non-biodegradable.
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MCQ 1141 Mark
Why should the inorganic garbage be not burnt?
  • ✓
    It pollutes the environment.
  • B
    Soil becomes warm and dry.
  • C
    Decomposers in the soil get destroyed.
  • D
    Water in the soil get dried up.
Answer
Correct option: A.
It pollutes the environment.

Burning of inorganic garbage is crime. It pollutes the environment and causes air pollution. Burning of solid waste is bad to health.

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MCQ 1151 Mark
What should be depth of household waste pits?
  • ✓
    $10 - 20\ cm$
  • B
    $5 - 10\ cm$
  • C
    $2 - 3\ cm$
  • D
    $0 - 1\ cm$
Answer
Correct option: A.
$10 - 20\ cm$

Depth of household waste pits should be $2 - 3\ cm$ below the ground.

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MCQ 1161 Mark
It is a low-lying open area of ground where city's garbage is normally dumped. Name it:
  • ✓
    Landfill
  • B
    Disposal field
  • C
    Open field
  • D
    Both and
Answer
Correct option: A.
Landfill
Landfill.
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MCQ 1171 Mark
Which kind of materials are to be collected in blue colored bins?
  • A
    Plastics.
  • B
    Metals.
  • C
    Glass.
  • ✓
    Materials that can be used again.
Answer
Correct option: D.
Materials that can be used again.
Materials that can be used again.
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MCQ 1181 Mark
How can you reuse plastic bottles and metal cans?
  • A
    By making compost from them.
  • ✓
    By using them for storing things.
  • C
    By melting them to form new products.
  • D
    By either of these.
Answer
Correct option: B.
By using them for storing things.
By using them for storing things.
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MCQ 1191 Mark
What is the correct method to dispose garbage?
  • A
    To burn it.
  • B
    To prepare manure from biodegradable garbage.
  • C
    To recycle non-degradable garbage.
  • ✓
    Both $(b) \& (c).$
Answer
Correct option: D.
Both $(b) \& (c).$
Both $(b) \& (c).$
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MCQ 1201 Mark
Which one of the following will add to garbage?
  • A
    Wrapper of a biscuit pack.
  • B
    Tin of a cold drink.
  • C
    Syringe used by a doctor.
  • ✓
    All of these.
Answer
Correct option: D.
All of these.
Garbage consists of many different types of substances and materials, as wrapper of a biscuit pack, tin of a cold drink, syringe used by a doctor, tea leaves, etc.
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MCQ 1211 Mark
Which of the following can be thrown in blue bins?
  • ✓
    Glass bottles
  • B
    Vegetable peels
  • C
    Egg shells
  • D
    Oil
Answer
Correct option: A.
Glass bottles

Blue bins are used for wastes that can be recycled and reused.
Glass bottle can be reused.

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MCQ 1221 Mark
Why disposal of garbage has become a serious problem in big cities?
  • A
    Garbage is collected in large quantities.
  • B
    Garbage contains materials like plastic and thermocol which do not decompose.
  • C
    Garbage is not separated into wet garbage and dry garbage.
  • ✓
    All of the above.
Answer
Correct option: D.
All of the above.
All types of waste adds to the quantum of garbage in big cities.
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MCQ 1231 Mark
Low lying land used to dispose garbage is called:
  • A
    Garbage dump.
  • ✓
    Landfill.
  • C
    Dustbin.
  • D
    None of these.
Answer
Correct option: B.
Landfill.
Landfill.
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MCQ 1241 Mark
What is of the following is correct?
  • A
    The landfill is a high lying open area.
  • B
    Plastics can be converted into less harmful substances by the process of composting.
  • ✓
    Redworms do not have a teeth.
  • D
    None of these.
Answer
Correct option: C.
Redworms do not have a teeth.
Redworms do not have a teeth.
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MCQ 1251 Mark
This is a paste made of clay and paper. It is prepared for recycling of paper. It is:
  • ✓
    Paper-mache.
  • B
    Clay.
  • C
    Paper.
  • D
    None of these.
Answer
Correct option: A.
Paper-mache.
Paper-mache.
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MCQ 1261 Mark
Observe the given figures. Which of the following will rot first?
  • A
    $P$
  • B
    $Q$
  • C
    $R$
  • ✓
    $S$
Answer
Correct option: D.
$S$

In the given figures fruit is an organic waste, it takes least time to decompose.

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MCQ 1271 Mark
Banana peel : ______ : : plastic : non-biodegradable.
  • A
    Decomposer.
  • ✓
    Biodegradable.
  • C
    Non-biodegradable.
  • D
    Fruit.
Answer
Correct option: B.
Biodegradable.
Biodegradable.
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MCQ 1281 Mark
In which of these places bio-degradable waste is dumped and converted to organic manure?
  • A
    Rivers
  • B
    Ponds
  • C
    Lakes
  • ✓
    Pits
Answer
Correct option: D.
Pits

Bio-degradable waste are dumped into pits to convert it into organic matter or manure.

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MCQ 1291 Mark
Landfills are most commonly used method of soil waste disposal. Which is the best place for landfill in a city?
  • A
    Near a school.
  • ✓
    Outside the city.
  • C
    Near a hospital.
  • D
    Near a park.
Answer
Correct option: B.
Outside the city.

Land fills are man-made pits that are filled with waste. They are usually far away from the city to ensure that rotting garbage does not pollute the land and water used by people.

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MCQ 1301 Mark
Which of the following is a good practice, concerning with the garbage collected from our houses?
  • A
    Organic wastes should be dumped in garden.
  • B
    Organic wastes should be thrown in public places.
  • ✓
    Organic wastes should be dumped in compost pit.
  • D
    Organic wastes should be thrown on the road side.
Answer
Correct option: C.
Organic wastes should be dumped in compost pit.

Garbage containing organic wastes should be dumped into compost pit to make into useful maures.

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MCQ 1311 Mark
Which of these wastes is causing the most harm to the environment today?
  • ✓
    Plastic bags
  • B
    Biodegradable waste
  • C
    Waste paper
  • D
    Poisonous waste
Answer
Correct option: A.
Plastic bags

The plastic bags thrown into the environment is causing the most harm to the environment today.

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MCQ 1321 Mark
Which of the following is the best way of keeping our surroundings clean?
  • A
    Throwing garbage on the road.
  • B
    Letting waste water to flow on the road.
  • ✓
    Throwing garbage into covered bins.
  • D
    Spitting in the open.
Answer
Correct option: C.
Throwing garbage into covered bins.

Garbage should be thrown into covered bins to keep our surroundings clean.

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MCQ 1331 Mark
To make a comfortable home for red worms:
  • A
    Dig a pit about $30\ cm$ deep.
  • B
    Dig a pit about $30\ cm$ deep at a place which is very hot.
  • C
    Dig a pit about $30\ cm$ deep at a place which is very cold.
  • ✓
    Dig a pit $30\ cm$ deep at a place which is neither too hot nor too cold.
Answer
Correct option: D.
Dig a pit $30\ cm$ deep at a place which is neither too hot nor too cold.
Dig a pit $30\ cm$ deep at a place which is neither too hot nor too cold.
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MCQ 1341 Mark
What cannot be a food for earthworms?
  • A
    Fruits
  • B
    Tea remains
  • C
    Weeds from fields
  • ✓
    Meat
Answer
Correct option: D.
Meat

Meat, oil, milk preparations, vinegar cannot be food for redworms.
They produce disease - causing organisms in soil.

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MCQ 1351 Mark
Which one of the following substances is easily decomposed by microorganisms?
  • A
    A plastic comb
  • B
    A copper plate
  • C
    A steel bottle
  • ✓
    An apple
Answer
Correct option: D.
An apple
An apple
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MCQ 1361 Mark
Non-biodegradable waste like plastic and metals should be:
  • ✓
    Recycled.
  • B
    Burnt.
  • C
    Composted.
  • D
    Dumped in land fills.
Answer
Correct option: A.
Recycled.

Non-biodegradable substances should be recycled.

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MCQ 1371 Mark
The steps required for conversion of kitchen garbage into manure are given below in a jumbled form.
  1. Put garbage in a pit.
  2. Cover the bottom of the pit with sand.
  3. Cover the pit loosely with a gunny bag or grass.
  4. Add worms.
Which of the following shows the correct sequence of the above steps?
  • ✓
    $(ii); (i); (iii); (iv)$
  • B
    $(i); (ii); (iii); (iv)$
  • C
    $(ii); (iv); (i); (iii)$
  • D
    $(iv); (i); (ii); (iii)$
Answer
Correct option: A.
$(ii); (i); (iii); (iv)$
This method of making manure from kitchen garbage using worms is called vermicomposting.
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MCQ 1381 Mark
Which of the following materials can be recycled?
  • A
    Papers such as old newspapers, magazines and boxes.
  • B
    Metals such as tin and aluminium used a food cans.
  • C
    Food scraps such as chicken and fish bones.
  • ✓
    Both $(a)$ and $(b).$
Answer
Correct option: D.
Both $(a)$ and $(b).$

Paper, metal tins and cans can be recycled.

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MCQ 1391 Mark
DIRECTIONS: Read the passage(s) given below and answer the questions that follow Passage $-$ If you collect the garbage from your home and put it in separate pits covered with soil for a few days. You will find that something in the garbage rots. They form manure which is used for plants. If you are asked to identify some of the items of your kitchen waste (i.e. garbage from kitchen),which of the following are likely to be present in it?
  • A
    Fruit and vegetable peels.
  • B
    Eggshells.
  • C
    Dry leaves.
  • ✓
    All of these.
Answer
Correct option: D.
All of these.
All of these.
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MCQ 1401 Mark
The rotting and conversion of some materials into manure is called:
  • A
    Recycling.
  • ✓
    Composting.
  • C
    Garbage.
  • D
    Land fill.
Answer
Correct option: B.
Composting.

Rotting and conversion of some biodegradable wastes by the action of decomposers is called composting.

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MCQ 1411 Mark
Converting plant and animal waste in to manure is called:
  • ✓
    Composting
  • B
    Vermi composting
  • C
    Fertilizing
  • D
    Land fills
Answer
Correct option: A.
Composting
Composting
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MCQ 1421 Mark
Gizzard is a part of ______ in redworms.
  • A
    Respiratory system
  • ✓
    Digestive system
  • C
    Reproductive system
  • D
    Excretory system
Answer
Correct option: B.
Digestive system

Gizzard is a part of digestive system of red worms.

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MCQ 1431 Mark
Why is it difficult or impossible to degrade non-biodegradable wastes?
  • A
    Because non-biodegradable wastes can be recycled.
  • ✓
    Because microorganisms cannot decompose it.
  • C
    Because it is a solid waste.
  • D
    All of the above.
Answer
Correct option: B.
Because microorganisms cannot decompose it.

It is difficult or rather impossible to de- grade non-biodegradable wastes be-cause microorganisms cannot decompose them.

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MCQ 1441 Mark
DIRECTIONS: Read the passage(s) given below and answer the questions that follow Passage - At the landfill site the part of the garbage that can be reused is separated out from one that cannot be used as such. The non-useful component is then spread over the landfill and then covered with a layer of soil. We develop compost pits near the landfill site:
  • A
    To utilize the available land.
  • ✓
    To utilize some of the useful components of garbage.
  • C
    To utilize some of the non-useful components of garbage.
  • D
    All of the above are correct.
Answer
Correct option: B.
To utilize some of the useful components of garbage.
To utilize some of the useful components of garbage.
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MCQ 1451 Mark
Rotting is carried out by:
  • ✓
    Microbes
  • B
    Insects
  • C
    Ants
  • D
    Amoeba
Answer
Correct option: A.
Microbes

Biodegradable wastes are broken down by microorganism (microbes).

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MCQ 1461 Mark
Which of the following may be given as food for red worms?
  • A
    Coffee.
  • B
    Tea.
  • ✓
    Vegetable and fruit wastes.
  • D
    All of the above.
Answer
Correct option: C.
Vegetable and fruit wastes.
Vegetable and fruit wastes.
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MCQ 1471 Mark
Which of the following animals are used for making compost?
  • ✓
    Redworms
  • B
    House fly
  • C
    Cockrach
  • D
    Mosquitoes
Answer
Correct option: A.
Redworms
Redworms
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MCQ 1481 Mark
Which one can be used for making manure?
  • ✓
    Earthworms
  • B
    Houseflies
  • C
    Eagle
  • D
    Crow
Answer
Correct option: A.
Earthworms

Earthworms are called farmer’s friends because they convert agricultural waste into manure.

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MCQ 1491 Mark
Leaves falling from trees should be:
  • A
    Dumped in landfill areas
  • B
    Dried and burnt
  • ✓
    Used in making compost
  • D
    Dumped near the ponds and takes
Answer
Correct option: C.
Used in making compost
Used in making compost
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MCQ 1501 Mark
When some things in garbage rots completely and did not smell, it:
  • A
    Becomes manure.
  • B
    Can be mixed with soil to provide nutrients to plants.
  • ✓
    Both the above are correct.
  • D
    None of the above are correct.
Answer
Correct option: C.
Both the above are correct.
Both the above are correct.
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