What was zyklon b used for before wwii

What is a brief and often humorous statement of truth or opinion, such as "a watched pot never boils"

Based on the evidence provided, readers can conclude that trey is

Me ! select the correct answer. which sentence is an oxymoron? a. to have peace, we must go to war. b. a glass can be viewed as either half full or half empty. c. the lawyer was deceptively honest with his clients. d. spies do not dress like spies. e. though the lab was messy, there was a method to his madness.