Question

___ is a naturally occurring hydrocarbon gas mixture.

Answer 1

Natural gas is a naturally occurring hydrocarbon gas mixture consisting primarily of methane.
It also contains varying amounts of other higher alkanes, and sometimes a small percentage of carbon dioxide, nitrogen, hydrogen sulphide, or helium.
Natural gas is found in deep underground rock formations or associated with other hydrocarbon reservoirs in coal beds.
Natural gas is a fossil fuel used as a source of energy for:
-heating
-cooking
-electricity generation
-fuel for vehicles
-chemical feedstock in the manufacture of plastics
-commercially important organic chemicals.