In the following groups of materials, which group/groups contain only non-biodegradable materials?
(i) wood, paper, leather
(ii) polythene, detergent, PVC
(iii) plastic, detergent, grass
(iv) plastic, bakelite, DDT

(i) and (iii)

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(iii)

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(ii) and (iv)

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(iv)

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Solution

The correct option is C (ii) and (iv)
(ii) and (iv)

Polythene, detergent, PVC, Plastic, Bakelite, and DDT are non-biodegradable materials i.e. they cannot be degraded.

Wood, paper, leather, and grass are biodegradable i.e. they can be degraded by decomposers.

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Question 12
In the following groups of materials, which group(s) contains only non-biodegradable items?
(i) Wood, paper, leather
(ii) Polythene, detergent, PVC
(iii) Plastic, detergent, grass
(iv) Plastic, bakelite, DDT

(a) (iii)
(b) (iv)
(c) (i) and (iii)
(d) (ii) and (iv)

Q. Which of the following groups have only non-biodegradable components?
1. Wood, paper, leather
2. Polythene, detergent, PVC
3. Plastic, detergent, glass
4. Plastic, glass, animal dug

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Standard XII Economics

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In the following groups of materials, which group/groups contain only non-biodegradable materials?​ (i) wood, paper, leather​ (ii) polythene, detergent, PVC​ (iii) plastic, detergent, grass ​ (iv) plastic, bakelite, DDT​

The correct option is C (ii) and (iv)(ii) and (iv)​ ​Polythene, detergent, PVC, Plastic, Bakelite, and DDT are non-biodegradable materials i.e. they cannot be degraded.​ Wood, paper, leather, and grass are biodegradable i.e. they can be degraded by decomposers.​

In the following groups of materials, which group/groups contain only non-biodegradable materials?
(i) wood, paper, leather
(ii) polythene, detergent, PVC
(iii) plastic, detergent, grass
(iv) plastic, bakelite, DDT

The correct option is C (ii) and (iv)
(ii) and (iv)

Polythene, detergent, PVC, Plastic, Bakelite, and DDT are non-biodegradable materials i.e. they cannot be degraded.

Wood, paper, leather, and grass are biodegradable i.e. they can be degraded by decomposers.