Ddt was widely used as a pesticide for 20 years. its use was banned after studies showed severe side effects were evident in humans, the environment, and animals as a result of ddt. which reason best explains why the side effects of ddt were so harmful? ddt kills insects and other pests. ddt decomposes. ddt was genetically engineered. ddt bioaccumulates.

DDT bioaccumulates

(DDT), is a colorless, odourless and tasteless crystalline chemical compound used as insecticide or pesticide to kill insects in garden, agricultural land and grain storage firms. The use of DDT has resulted in the profound impact of biomagnification. DDT is toxic not only for insects but also for other living species. DDT remain undigested in the living organisms. It is passed in the undigested form from one organism to other organism, when one organism is consumed by other organism in food chain. In food chain the accumulation of DDT gets maximum at the higher trophic level. Hence, results in decline in population of large terrestrial and aquatic mammalian population, including humans.

DDT decomposes.

Explanation:

sorry if it wrong I really tried.