Which one of the following games would most readily flow along the ground if accidentally released?

1.chlorine
2.ethyne
3.helium
4.hydrogen
5.nitrogen

8 answers

which do you think?
(I know you meant gases)
games???
they meant gases
They are all gasses but the most dense of the bunch is ethyne (Acetylene)
I agree with @Damon
ethyne
hydrogen