Read article about Chemical Weapons. Answer these questions:
1. What weapon was first used on April 22, 1915?
2. What were the effects of the weapon?
3. What type of chemical was used?
4. Which country was the leader in chemical weapons?
5. What other chemicals were used?
6. What were the effects of mustard gas?
7. What happened to the wife of one of the developers of chemical weapons?