sources of energy

wind power

water power

sources of energy

solar power

have run out

will never run out

are renewable

are not renewable

three

four

five

six

they need a large reservoir.

they could meet 30-40 % of energy needs

HEP reservoirs destroy the rivers

they need oxygen

it pushed electrons out of atoms

some areas do not get enough sun shines

solar cells do not need a lot of maintenance

there is a lot of sun in the US