In solar power plants the solar heat is transferred by
Select one:
a. water steam
b. liquid metals
c. all of the mentioned
d. none of the mentioned
e. molten salt​

Why are nongovernmental organizations important? check all that applya. they are private institutions that aid the work of government.b. they often fill in gaps between government-funded services. c. they are private institutions that attack government policyd. they citizens by acting as watch dogs over elected officials

Which of the following describes what rocks usually are composed of ,

The formation of the planet uranus is estimated to have occurred approximately when?