Pick two forms of alternative energy. Name one advantage and one disadvantage of each form.

Solar and wind energy.

Explantation:

One advantage of Solar energy is that it reduces reliance on oil.

One disadvantage is that they are weather dependent. Solar energy can still be collected during cloudy and rainy days but the efficiency of the solar system drops .

One advantage of wind energy is that its a clean fuel source. It doesn't pollute the air like power plants that rely on combustion of fossil fuels, such as coal or natural gas.

One disadvantage is that wind plants can impact local wildlife. Birds have been killed by flying into spinning turbine blades.

i believe it is "they are not used up by reactions" as the answer to your question, text me back if this is correct because i just learned this.