Question

Which one of the following is non-biodegradable?
a. DDT
b. Vegetable peel
c. Cardboard
d. Bark of trees.

Answer 1

Hint: Non biodegradable is the material which cannot be degraded or breakdown or decomposed by the natural agents such as microorganisms, which makes them to remain on the earth for several years and accumulated and may cause several hazards, examples include plastic and pesticides etc.

Complete answer:
Waste materials on the earth are classified into two types mainly such as
1. Biodegradable and 2. Non biodegradable.
> Biodegradable materials are the things which can be degraded or decomposed into soil by the microorganisms such as bacteria, fungi etc.
> Some of the examples of biodegradable materials are food waste, animal waste, plant waste etc
> Most of the biodegradable wastes are decomposed by forming large pits where they are degraded naturally by the microorganisms present in the soil, and this can be used as compost for the cultivation of so many crops, and this process helps to prevent the accumulation of so much waste on the land.
> Non biodegradable materials are the things which cannot be decomposed by microorganisms and they accumulate on the earth and cause several hazards
> Some of the best examples for non biodegradable material is plastic where commonly used everywhere, this plastic is the main cause of pollution on earth and one of the cause for cancer.
> Non biodegradable materials are again classified into Recyclable and non recyclable wastes
> From the above given options DDT is non biodegradable chemical fertilizer, this may cause soil more acidic or alkaline which may damage the fertility of the soil.
> Other options are the examples of biodegradable
> So from the above explanation DDT is the correct option.

Note: The chemical pesticides like DDT may cause so many hazards, they may enter into aquatic life through water and may disturb them and they may also enter the food chain and may present in higher concentration in organisms belongs to higher trophic level which is said to be biological magnification.