Most of the heat energy contained in natural gas is used to generate steam for electric power or steam engines, to heat buildings, and for cooking and other household needs.
(the heat energy; contained; in natural gas) (Most of the heat energy; is used; to generate steam for electric power or steam engines) (Most of the heat energy; to generate; steam for electric power or steam engines)
the heat energy Most of the heat energy Most of the heat energy
contained is used to generate
in natural gas
to generate steam for electric power or steam engines
steam for electric power or steam engines