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In the following groups of materials, wh...

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)

Text Solution

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The correct Answer is:
A, D
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ZEN PUBLICATION-OUR ENVIRONMENT -ZEN ADDITIONAL QUESTIONS SECTION (MULTIPLE CHOICE QUESTIONS )
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  2. Which of the following are environment-friendly practices?

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  3. Which one of the following undergoes fastest biodegradaton ?

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  4. Flow of energy in an ecosystem is always

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  5. Which of the following is eco-friendly?

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  6. Observe the food chain given below: Grass rarr Grass hopper rarr Fr...

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  7. Which one of the following is an artificial ecosystem?

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  8. In a food chain, the third trophic level is always occupied by

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  9. An ecosystem includes

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  10. Accumulation of non-blodegradable pesticides in the food chain in incr...

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  11. Depletion of ozone is mainly due to

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  12. Organisms which synthesise carbohydrates from inorganlc compounds usin...

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  13. In an ecosystem, the 10% energy available for transfer from one trophi...

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  14. Organisms of a higher trophic level which feed on several types of org...

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  15. In the following groups of materials, which group(s) contains only non...

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  16. Which of the folklowing limits the number of trophic levels in a food ...

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  17. Which group of organisms are not constituents of a food chain? (i) ...

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  18. The percentage of solar radiation absorbed by all the green plants for...

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  19. What happens if deer is missing in the food chain given below? Grassra...

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  20. If a grasshopper is eaten by a frog. the energy transfer is from

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