Nitrogen — 78 percent. Oxygen — 21 percent. Argon — 0.93 percent. Carbon dioxide — 0.04 percent. Trace amounts of neon, helium, methane, krypton and hydrogen, as well as water vapor. How do gases get into the atmosphere? The quantity of greenhouse gases is increasing as fossil fuels are burned,Read More →

Hydrocarbon gases are methane (CH4), ethane (C2H6), propane (C3H8), butanes (C4H10), pentanes (C5H12), hexane (C6H14), heptane (C7H16), and sometimes trace amounts of octane (C8H18), and higher molecular weight hydrocarbons. Are hydrocarbons gaseous? Hydrocarbons can be gases (e.g. methane and propane), liquids (e.g. hexane and benzene), waxes or low melting solidsRead More →