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In the following groups of materials, wh...

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

A

(iii)

B

(iv)

C

(i) and (iii)

D

(ii) and (iv)

Text Solution

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The correct Answer is:
D
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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

Unlimited exploitation of nature by man disturbed the delicate ecological balance between the living and non-living components of the biosphere. The unfavourable conditions created by man himself threatened the survival not only of him but also of the entire living organisms on the mother earth. Rehan is an active member of 'Eco club' of his school which is creating environmental awareness amongst the school students, spreading the same in the society and also working hard for preventing environmental degradation of the surroundings. As part of this awareness programme, they are explaining the importance of using different dustbing for biodegradable and non-biodegradable wastes. Generally green duslbing are for biodegradable wastes and blue for non-biodegradable wastes. 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

The activities of man had adverse effects on all forms of living organisms in the biosphere. Unlimited exploitation of nature by man disturbed the delicate ecological balance between the living and non-living components of the biosphere. The unfavourable conditions created by man himself threatened the survival not only of him but also of the entire living organisms on the mother earth. One of your classmates is an active member of 'Eco club' of your school which is creating environmental awareness amongst the school students, spreading the same in the society and also working hard for preventing environmental degradation of the surroundings. Which of these group(s) contains only non biodegradable items? (i) Wood, paper, leather (ii) Polythene, detergent, PVC (iii) Plastic, detergent, grass (iv) Plastic, bakelite, DDT

Which of the following groups contain only biodegradable items?

LAKHMIR SINGH & MANJIT KAUR-OUR ENVIRONMENT-Exercise
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  2. Organisms of a higher trophic level which feed on several types of org...

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  3. In the following groups of materials, which group/groups contain only ...

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  4. Which of the following statement is incorrect ?

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  5. Which of the following group of organisms are not constituents of a fo...

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  6. In the figure given alongside, the various trophic levels are shown in...

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  7. One of the following is not a biodegradable material. This one is :

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  8. Which of the following is not a non-biodegradable material ?

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  9. The use of one of the following will pollute the environment. This one...

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  10. One of the following is not a consumer. This one is :

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  11. Which of the following is not a producer ?

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  12. One of the following is a micro-consumer. This one is :

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  13. Which of the following act as decomposers in an ecosystem ?

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  14. One of the following helps in the recycling of materials in an ecosyst...

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  15. In the food chain comprising of a snake, grass, insect, and frog, the ...

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  16. Sahara Desert was formed over a period of time due to one of the follo...

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  17. The sea water contains water beetles, tadpole, fish and weeds. (a) W...

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  18. The following is a food chain that ends with human : plants to bee t...

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  19. A food chain occurring in the sea which provides food for many people ...

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  20. What would happen to the number of rabbits and grass plants if the num...

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