Consider a seafloor spreading zone creating 1 centimeter of new crust over its entire 1000 kilometers length every year.
a) how many square kilometers of surface will this create in 100 million years? express your answer in km squared
b) what fraction of earth's surface does this constitute?

Where is the world’s shortest commercial runway?

You could say the relative location of washington, d.c.

What statement about the economy of france is not true? a. paris is a major manufacturing center b. marseille is a busy seaport on the mediterranean coast c. farming is the major activity in the alps. d. world-famous wines are produced in the bordeaux region c. farming is the major activity in the alps