Which of the following can provide the energy source for a generator?
moving wind
moving water
steam
all of the above

Agricultural practices in the united states nearly led to the extinction of the peregrine falcon during the 1950s and 60s.

Why did the belgian parliament pass laws to decentralize its government? a. to increase trade with neighboring luxembourg b. to decrease the political power enjoyed by the flemish c. to enable belgium to join the european union d. to reduce tensions between belgium's two main ethnic groups

Which of the following is a measure of the amount of light a star directly emits? a. luminosity b. wavelength c. brightness d. intensity