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CBSE Questions for Class 6 Biology Garbage In Garbage Out Quiz 4 - MCQExams.com
CBSE
Class 6 Biology
Garbage In Garbage Out
Quiz 4
Old newspapers can be recycled into
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New paper
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Paper bag
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Plastics
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Both A and B
Modern landfill can be later converted into:
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Playground
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Parks
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School
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Both A and B
Explanation
$$\textbf{Correct option:D}$$
$$\textbf{Solution:}$$
$$\bullet$$Landfills are physical structures that are used to dispose of waste on land, and they should preferably be considered as the final disposal option for unrecoverable waste.
$$\bullet$$The contemporary landfill is a complex structure designed to safely remove trash from civilization.
$$\bullet$$Modern landfills not only serve as reclaimed space that may be turned into parks and playgrounds, but they also produce methane (landfill gas), among other things.
Hence, the correct answer is option D
Which of following component of garbage is spread over the landfill?
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Non decomposable
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Decomposable
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Worms
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All of the above
Explanation
A landfill is a site for the disposal of waste materials by burial and the oldest form of waste treatment. The various types of wastes accepted at landfills for disposal are household wastes (decomposable or non-decomposable), construction and demolition waste with light contaminants, tree and yard trimmings etc. It also contains soil or alternative materials like chipped wood or other green wastes, and worms.
So, the answer is D.
Which of the following garbage is not converted into compost by the redworms?
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Vegetable peel
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Plant waste
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Animal waste
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Rags
Blue dustbin is used to dispose
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Non recyclable wastes
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Recyclable wastes
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Only agricultural wastes
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All of the above
Paper is made up of
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Animal
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Plant
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Chemicals
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None of the above
Degradable waste can be disposed in
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Blue bin
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Red bin
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Green bin
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Black bin
Sheela make a paste of paper from her old note books. But she wants to make colourful paper. What she will used to make paper colourfull?
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Paints
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Edible colour
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Colourfull paper
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Both B and C
A garbage collector separate items mentioned below in the garbage into red, green and blue containers for their transfer to landfill, composting pit, and recycling unit respectively. Items:
(i) Plastic bags
(ii) Newspaper and journals
(iii) Screw and nuts
(iv) Vegetable peels
(v) Metal chips
(vi) Egg shells
Which items were transferred to which bin?
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RED - (i) and (iv); GREEN - (ii) and (iii); BLUE - (v) and (vi)
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RED - (i) and (iii); GREEN - (ii) and (v); BLUE - (iv) and (vi)
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RED - (i), (iii) and (v); GREEN - (iv) and (vi); BLUE - (ii) only
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RED - (i) and (v); GREEN - (i) and (ii); BLUE - (ii) only
Explanation
Red bins are installed for waste like metal chips, screws and nuts. Green bins are installed for collecting biodegradable waste like egg shells and vegetable peels. Blue bins are installed for collecting the newspapers and journals, cardboard etc
So, the correct answer is '
RED - (i), (iii) and (v); GREEN - (iv) and (vi); BLUE - (ii) only
Glass, aluminium cans and metals are included in;
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Non-combustible Rubbish
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Combustible Rubbish
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Garbage
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Natural resource
Which of the following paper cannot be recycled?
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Old newspaper
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Note book
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Magazine
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Plastic coated paper
Which of the following is an example of non-biodegradable waste!
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Fruits
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Vegetables
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Paper
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Polythene
Explanation
Non-Biodegradable wastes are those that cannot break down or degrade for many years. These are waste that cannot change into manure and they pile up causing pollution. The burning of these fuels causes more pollution in the environment. The non-biodegradable wastes become useful when they can be recycled.
Examples of non-biodegradable wastes are plastics, glasses, metals, toxic chemicals, toxins, plastic products like plastic bags, grocery bags, plastic containers, and plastic water bottles are also non-biodegradable.
So the answer is option D 'Polythene'.
Which of the following is the waste product obtained during the extraction of metal?
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Slag
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Sludge
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Carbon
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Soil
Explanation
Slag is the waste product obtained during the extraction of every tonne of the metal extracted.
Sludge is formed during water treatment, carbon is a chemical element while soil is a material composed of five ingredients — minerals, soil organic matter, living organisms, gas, and water.
Thus, the correct option is A- 'Slag'.
If you dump kitchen waste in a pit, it may, after sometime
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Convert into compost.
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Convert into vermicompost.
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Remain as such.
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Remain forever in its dried form.
Explanation
Kitchen waste is biodegradable, hence, when dumped into a pit will be acted upon by the decomposers and converted into compost.
So, the correct answer is option (a) convert into compost.
Which one of the following material is not safe to prepare carry bags?
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Cloth
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Paper
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Jute
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Polythene
Explanation
Polythene is a type of plastic. This substance is non-biodegradable and
cannot be degraded by natural processes.
It poses several risks due to its accumulation in the environment. On burning, it releases poisonous gases in the air causing health issues.
Hence polythene
is not safe to prepare carry bags.
Thus the correct answer is option D.
Flower petals can be used to give colour to the
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Paper
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Plastics
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Water
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Food
Which of the following do not rot and undergo composting?
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Kitchen wastes
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Glass
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Plant wastes
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Animal wastes
Explanation
Wastes from the kitchen and plant and animal wastes undergo rotting and turn into manure(Composting). However, plastics and glass do not rot and remain as such for many years.
Hence the correct option is B.
The process of conversion of wastes into manure is called:
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Landfilling
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Adaptation
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Sorting
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Composting
Explanation
Composting is the process by which certain wastes such as kitchen wastes and plant and animal wastes undergo rotting and get converted to manure in the soil.
Hence the correct option is D.
Earthworms survive in
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Hot conditions
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Cold conditions
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Moist conditions
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None of these
Explanation
An earthworm survives and grows well in moist soil. They cannot grow in hot or cold conditions.
Hence the correct option is C.
The aim of the Swachh Bharat Mission was to make India plastic-free by 2019.
Is the above statement true or false?
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True
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False
Explanation
The aim of the Swachh Bharat Mission was to make India open defecation free by 2019.
Hence the given statement is false.
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