What technology during WWII laid the preliminary research for systemic pesticides?. Earth & Marine Sciences

Chemical warfare; Chemicals such as Mustard Gas, Cyanides and Chlorine were observed to cause burns, sicknesses and death in soldiers. World War I is often called "the chemists’ war", both for the extensive use of poison gas and the importance of nitrates and advanced high explosives. Their effects evoked interest among people and many scientists started studying them closely. Research into these and similar chemicals was funded by many companies and governments and continued well after the war.