Organochlorine pesticides such as DDT's human toxicity is comparatively lower. It is their impact on the food chain that leads to acute human toxicity. Their properties that cause them to be impactful on the food chain are:

(A) Persistence

(B) Insolubility

(C) Solubility

(D) Polarity

Choose the most appropriate answer from the options given below:

Correct option is B

The properties of persistence and solubility make organochlorine pesticides such as DDT particularly impactful on the food chain. These chemicals are persistent, meaning they do not degrade easily in the environment, and they are soluble in fats (lipophilic), which allows them to bioaccumulate in the tissues of organisms. As a result, they move up the food chain and can cause acute toxicity at higher trophic levels, including humans.
Information Booster:
1. Persistence: Refers to the pesticide's ability to remain in the environment for extended periods without breaking down.
2. Solubility in fats (lipophilicity): Enables bioaccumulation in the fatty tissues of living organisms.
3. Bioaccumulation: The process where substances like DDT build up in an organism over time, leading to higher concentrations at each level of the food chain.
4. Polarity/insolubility: These do not apply as major factors for DDT's environmental impact, as DDT is fat-soluble rather than water-soluble.