Which facility relies on a nonrenewable source of energy? Group of answer choices

a wind farm that uses wind turbines

a solar farm that collects sun light

a dam that uses the power of water

a power station that burns coal

Ascientist is designing an investigation to study the impact of invasive bird populations on local, native bird populations at backyard bird feeders. what population is most likely to be a control group for the investigation? amount of food number of bird feeders invasive bird populations local backyard birdfeeders without food