Question

today people use fossil fuels along with alternative energy sources. this is because as populations grow, the higher demand for energy uses up nonrenewable resources. reducing the use of fossil fuels would have a positive impact on the environment. read each of the phrases that describe the characteristics of renewable and nonrenewable energy sources. match the descriptions with the energy source they describe. less polluting choose fossil fuels choose high carbon dioxide levels choose alternative energy choose costs less to access choose unlimited choose

Explanation:

Renewable alternative energy sources are generally less - polluting and can be unlimited. Fossil fuels are non - renewable, produce high carbon dioxide levels and are not typically less expensive to access.

Answer:

Less polluting: alternative energy
fossil fuels: non - renewable energy source
high carbon dioxide levels: fossil fuels
alternative energy: renewable energy source
costs less to access: [No clear answer from the info given, but traditionally some fossil fuels are cheap to access in some regions; more research needed]
unlimited: alternative energy