Leg press, deadlifts, RDLs, lunges, leg extensions, leg curls, hack squats, split squats. All those will hit your legs, plus there variations. Do some sprints, run hills, stairs, those will hit your legs. Im sure there are more lifts I can't think of this second as well.
While natural gas occurs in nature as a mixture of methane and other gases, propane is actually a byproduct of both petroleum refining and natural gas processing.
Burning one cubic foot of natural gas produces approximately 1,012 BTUâs of heat while burning one cubic foot of propane produces 2,520 BTUâs of heat. The difference in heat content per cubic foot does not mean that natural gas is less desirable as a heating fuel.