Question

Which one is nonbiodegradable?

• A. sewage
• B. vegetable peels
• C. livestock waste
• D. DDT

Answer 1

The correct option is D

DDT

The correct option is D

Explanation of the correct answer:

1. Non- biodegradable pollutants- Those pollutants that cannot be broken down into simple, non-poisonous, harmless products over time by microorganisms known as decomposers.
   Examples of non-biodegradable materials are plastic, rubber, metals, and other materials.
2. Biodegradable pollutants- Those pollutants that can be broken down into simple, non-poisonous, harmless products over time by microorganisms known as decomposers.
   Examples of biodegradable materials are dead animals, plants, etc.
3. DDT (Dichlorodiphenyltrichloroethane) is a pesticide that is non-biodegradable, meaning it cannot be broken down by bacteria. It's a crystalline, colorless, and odorless substance that was widely employed as an insecticide until its negative effects on the environment were discovered.
4. Because DDT is a fat-soluble chemical, it has been found to be quite persistent in the environment. It infiltrated the aquatic food chain and induced biomagnification, according to studies.
5. In turn, it was discovered that it is readily absorbed by soil particles, resulting in the microbial fauna of the soil being destroyed. It evaporates and lingers in the atmosphere as a contaminant. As a result, it is a non-biodegradable substance.
6. Sewage is the wastewater generated by households and factories, which is rich in bacteria and thus biodegradable.
7. 'Livestock waste' refers to the waste produced by the meat, egg, and milk industries. It contains a significant amount of biodegradable organic materials.

Explanation of the incorrect answers:

Option A:

1. Sewage is made up of organic waste that has been ejected by numerous species, which is rich in microbes that's why these are biodegradable waste.. Fertilizer is frequently made from sewage. Sewage materials decompose naturally in the environment.

Option B:

1. Vegetable peels decompose fully in the environment. These peels decompose completely and turn into compost or manure, which can be recycled as fertilizer in the soil. Because of their capacity to degrade into recyclable components, vegetable peels are called biodegradable components.

Option C:

1. The amount of organic matter in manure is mostly determined by the type of feed, manure management, and manure age. Manure decomposes naturally after excretion; suspended solids in the manure are hydrolyzed into dissolved components, and microbes biodegrade it.

Final answer: DDT is non - biodegradable.