The main constituent of natural gas is methane (CH4). It is a colorless, odorless, and flammable gas that is lighter than air. Methane is the simplest hydrocarbon and is the primary component of natural gas. It is also found in coal seams, landfills, and as a byproduct of oil production. Methane is a greenhouse gas and is a major contributor to climate change.
Ethane (C2H6) is a colorless, odorless, and flammable gas that is heavier than air. It is the second most abundant component of natural gas. Ethane is used as a fuel, a chemical feedstock, and a refrigerant.
Butane (C4H10) is a colorless, odorless, and flammable gas that is heavier than air. It is the third most abundant component of natural gas. Butane is used as a fuel, a chemical feedstock, and an aerosol propellant.
Propane (C3H8) is a colorless, odorless, and flammable gas that is heavier than air. It is the fourth most abundant component of natural gas. Propane is used as a fuel, a chemical feedstock, and an aerosol propellant.
In conclusion, the main constituent of natural gas is methane.