The environmental health mandate of the US EPA was motivated by a book by Rachel Carson entitled ""Silent Spring"" which talked about the negative environmental effects of a widely used agricultural chemical, DDT. What is not true of DDT?"
1. DDT spraying contributed to the near extinction of many bird species
2. DDT leads to bird eggs with thin shells which gets crushed when mother birds try to incubate them
3. DDT is very effective in controlling the incidence of mosquito-vectored diseases like the Zika virus
4. DDT is a very effective insecticide against important crop pests
5. In 2018, DDT was the most widely used agricultural pesticide in the US