What gas is known as the “silent killer”?

   January 17, 2015    No Comments yet    Posted in: Trivia crack

Question: What gas is known as the “silent killer”?

Options:

Nitrogen
Mustard Gas
Carbon Monoxide
Helium

Correct answer:

Carbon Monoxide

Other game answers: deer hunter 2014, 600 celebs answers, trivia crack answers.

  

Leave a Reply