I fixed a couple things up for you, this is how it should be:
DDT is a colorless, tasteless, and almost odorless crystalline chemical compound. DDT is a dichloro-diphenyl-trichloroethane insecticide which is a class two insecticide. Around 1874 DDT was synthesized by an Austrian chemist named Othmar Zeiler. But in 1939 DDT finally had its first taste at insecticidal actions which was discovered by a Swiss guy named Paul Hermann Müller. DDT was used heavily in the second half of world war two they used it for many things but the main thing they used it for is fighting the diseases like Malaria, Typhus, and the other insect-borne human diseases among the earth populations. DDT finally went for sale locally on October 1945 but it was meant for the use as an agricultural and household pesticide. The problems DDT has caused are not a joke it has killed many species/ animal from around the world there are cases of people getting diseases and defects from being minor exposed to DDT. Several people have gotten breast cancer and many other things, people who have been exposed to DDT are more likely to have lymphoma, leukemia, and pancreatic cancer. Many animals and organisms have been impacted like the Bald eagle, Peregrine falcon, Osprey, crayfish, fish, shrimp, and many other animals and organism. For the bird species, it said that many birds had brain lesions or liver abnormalities which were fatal. Populations of bald eagles and other birds crashed when DDT thinned their eggs, killing their embryos. The only thing they did to stop all of this mayhem was to simply ban the use of DDT in the United States this helped tremendously and brought down the death rate of birds.
