Which nonrenewable energy resource has the highest energy return on energy investment (EROEI)?

Which nonrenewable energy source emits NO CO₂ during plant operation?

Which nonrenewable energy source is rarely used to generate electricity?

Which nonrenewable energy source will probably be much less available in the next 40 to 60 years?

Which nonrenewable energy source has many different uses including heating/cooling homes, cooking, and power production?

Which nonrenewable energy source would help a country become energy independent yet generate a highly radioactive waste product?

Which nonrenewable energy source is the most abundant in the United States and could potentially supply the United States with energy for 200 years?

Which nonrenewable energy source would have the highest upfront costs to become operational?

Which nonrenewable energy source has the highest electricity cost per kWh?