The synthetic insecticide DDT was in wide use after 1945 by farmers around the world. In the 1970s, the use of this chemical was banned by most Western countries. It remains as a residue in soils and waterways.
(a) Explain why this chemical was banned:
(b) Explain why the use of synthetic pesticides is becoming increasingly uneconomic:
Answers
Answered by
1
as this chemical has CFCs(chlorofluorocarbons) so it deplets ozone layer which has drastic affect on human being as harmful UV rays will be coming from sun to earth surface abd cause disease like skin cancer cataract,lowered immune
Answered by
2
a) It has a disastrous effect on a variety of freshwater and marine beings. It was found to cause eggshell thinning in birds, especially eagles and hawks, which caused decreased reproductive rates. DDT is linked with cancer, endocrine disruption, and reproductive and developmental effects.
b) this is becoming increasingly uneconomic because the lasting damage has and is producing physical effects on the environment that are costly for governments
b) this is becoming increasingly uneconomic because the lasting damage has and is producing physical effects on the environment that are costly for governments
Similar questions