The SI unit for energy is the - a) Watt (W)
b) second(s)
c) Joule (J)
d) kilogram (kg)

What produces light and all other electromagnetic waves? a) the photoelectric phenomena b) heated metals c) charged particles d) radioactive samples (pls explain if you can : )

Which are advantages of renewable resources? check all that apply. renewable energy supplies are completely reliable everywhere. some renewable resources will never be used up. little or no waste is produced by renewable resource plants. electricity can be generated in large quantities. many renewable energy facilities have lower operating costs.

Gordon is going for a run through the park, but it is cold outside. the low outside temperature could affect his personal safety.