Wild World: Biological and Chemical Warfare Quiz

Throughout history, wars have decimated civilizations, torn apart families and left sickness and chaos in their wake. So when the world's leading practitioners of war get together and ban a particular method of waging it, you know it's something really bad, like chemical and biological warfare. When did countries start using lethal chemical concoctions and hazardous viruses, bacteria and toxins as weapons? Where do they come from?

Source: http://feeds.howstuffworks.com/~r/DailyStuff/~3/WRHOBMjfxJ4/biochemical-warfare-quiz.htm

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