Some sample questions from this category:
* What produces the botulinus toxin?
* This dangerous arachnid, dwelling in tropical and temperate regions, produces a neurotoxin which is fatal in some cases. Hint: this animal is identified by a red hour-glass shaped mark on its body.
* What does DDT stand for?
* In the 8th century, the Byzantines staged off an Arab invasion using a powerful substance of an obscure nature. What was it called?
* During the Vietnam War, a chemical mixture was used as a defoliant, and was prepared by mixing 2,4-D and 2,4,5-T. What was this mixture called?
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