extends from 1.8 Ma until the present. Geologically, it is characterized by the shaping of the northern hemisphere continents and its effects on the life of our ancestors.

What happens to the age of the lithosphere as you move further from the mid-ocean ridge?

the earth's crust varies from 8km to 40 km what does this show?

To what extent does plate tectonics shape the Earth's surface features and influence geological processes? (115 words)

In noting that the earth is "differentiated," we mean thatGroup of answer choicesthe radioactive heating in the core is increasing with time.the density increases as you descend downward toward the core.the earth's magnetic field varies at different locations on the globe.the earth is very different than any other planet we study.the density of oceanic basalt is less than that of granite on the mountain tops.

Which lines divides the Earth into the Northern and Southern Hemispheres?ATropic of CancerBPrime MeridianCEquatorDTropic  of Capricor