Compared to oil and gas, solar energy:

costs less to produce

costs more to produce

is always available

does not require any machinery

Costs less to produce because you can get the energy right from the sun after paying a one time fee for the solar panel instead of a recurring fee for the gas.

Ifound this on google “laws of chemical combination. it states that matter can neither be created nor destroyed. it stated that a given compound always contains exactly the same proportion of elements by weight.” i hope this you for what your looking for.

Work done = force ×distancebut force = mass ×gravityand gravity = 10m\s force = 2×10 = 20 work done = 20×3 = 60 joules