A type of organic compound is a colorless odorless gas, flammable. There is a formula CH4 appeared in ruins with decayed organic matter decomposition in the pond of coal. In the natural gas
One organic compounds It is a colorless, odorless, flammable gas with a formula CH4 has appeared in the presence of decaying organic matter decays in a coal mine in natural gas.
Organic compounds a kind of look like a gas, no color, no smell, flammable, the formula CH4 have appeared in the organic decay decay In the pond the coal in the gas.