Which of the following is NOT a renewable energy source? A. Nuclear energy
B. Hydroelectric energy
C. Geothermal energy
D. Solar energy

Select the correct text in the passage. which sentences describe examples of sustainable living? i live in an old apartment building downtown, but my company is based in an office park on the outskirts of the city. i drive an old car that needs to be replaced. i plan to buy a hybrid for better gas mileage, but for now i am able to carpool with a couple of friends from work. the drive to the office park is about 45 minutes each way, but we do get to work in a modern building. the architects just received a leed certification for the design.

The chart shows the bid provided by four contractors to complete a job. which contractor is the most cost-effective?

What is the energy in joules of a mole of photons associated with visible light of wavelength 486 nm?