Hydrosphere means: A. all the living things on Earth.

B. the rocky outer layer of the solid Earth.
C. the liquid layer of Earth.
D. the gaseous layer surrounding the Earth

Match the type of region in column 1 to the example in column 2 functional region: functional formal perceptual example: the united states of america the slums of detroit the houston metropolitan area

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

The layers of earth are based on what two sets of characteristics?