Question

In the following groups of materials, which group 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)

Answer 1

Hint: Non-biodegradable wastes are those that natural agents may not decompose or degrade. They have existed on earth without decay for centuries.

Complete answer:
First we should know about non-biodegradable answers to answer this question. As a category of substance that could not be torn down by natural organisms and serves as a source of contamination, a Non-Biodegradable material can be identified.

Now, let us find the solution from the options:
- Biodegradable materials are those that, like detritivores, can be destroyed by biological organisations. Thus, option A is not the correct option.
- Such species feed on and convert dead and decaying matter into minerals and release those minerals back to the ecosystem, thereby achieving the nutrient cycle. Thus, option B is not the correct option.
- For a long period of time, non-biodegradable pollutants linger with existence. This includes polythene, DDT, detergent, plastic PVC, bakelite, etc. Thus, option C is not the correct option.
- Non-biodegradable materials are goods on which detritivores cannot function. Thus it is difficult to degrade or decompose such objects. In a way, they are a lasting environmental enhancement that cannot be done away from. Polythene plastics include Bakelite, insecticides such as DDT, PVC, detergent, etc. It is not possible to biologically destroy these products.

Hence, the correct answer is option (D)

Note: Non-biodegradable waste is not environmentally safe and must be substituted. Scientists have taken forth numerous innovations, such as biodegradable plastics, etc as part of the creation of alternatives. They combined plastics with certain biodegradable materials and found them readily and effectively degradable. But this technique is very expensive.