Poisonous gases....hahahaha....ah shii!
On Earth, there are a few kinds of pollution:Noise, Garbage, Toxic Wastes, Chemicals, Toxic Gases.
Exxon
noise water toxic waste hehe
coal,oil,and gases all kinds
Texas produces helium, and carbon dioxide
hydrogen, helium, and a small admixture of iron, calcium, and sodium
Carbon dioxide oxygen and nitrogen and argon
Noise Garbage Toxic Wastes Chemicals Toxic Gases
Because air is a composition of all kinds of gases and is different everywhere.
Hydrogen, helium and methane, 80, 19 and 1% respectively.
Carbon Dioxide, Sulfur, Coal, ect.