Module 34 Review

rank the fossil fuels in order of (worldwide) usage

1. oil, 32% 2. coal/peat, 29% 3. natural gas, 21% 4. renewable energy, 13% 5. nuclear fuel, 5%

How are fossil fuels originally formed?

Biological material that is exposed to heat and pressure which is transformed into high-energy solid, liquid, and gas components.

How can technologies like combined cycle and cogeneration in power plants increase efficiency?

Combined cycling uses externalities to help create energy. Cogeneration generates heat and electricity at the same time.

In the US "energy system", what are the inputs? What are the outputs?

I: imports from other countries O: work, transportation, waste, heat, pollutants, CO2

Explain how electricity is generated and distributed

Produced through the conversion of primary energy sources , transported through electrical grids that connect power plants to users.

What types of considerations go into choosing the best energy source for a particular situation?

Volume of the material, energy-to-mass ratio, externalities

what is a secondary energy source?

electricity

which energy source does not originate from the sun?

nuclear