Are humans a compound or a mixture?

According to the loco mass the mass of reactants and products

Biomass can be used to generate electricity. biomass relies heavily on agricultural crops. plants release carbon dioxide and water in combustion. plants use photosynthesis to originally generate the energy that is needed. the chemical energy of these plants all started with what energy source?

Will give ! ! widentify the advantages and disadvantages of renewable and nonrenewable energy resources.