Where is the oldest oceanic crust found? Youngest?

What port city handles the largest amount of international sea trade in the United States?

Briefly describe what has happened (or is happening) to each of the following modes of public transportation in U. S. cities? -trolleys -buses -rapid transit (subway & fixed rail line)

Which conditions of climate, latitude, rainfall, and kind of land would make the best farmland?

The longest river in the world

Wind forms dunes through ___. deposition sublimation condensation evaporation

Which of the following European countries is one of the top three leading exporters in the world? A) United Kingdom B) Germany C) Spain D) France

Fault lines are: the crust of the lithosphere that has fractured along plate boundaries and ridges the crust of the athenosphere that has fractured along plate boundaries and ridges the crust of the biosphere that has fractured along plate

Which US region historically has been dependent on the Entertainment, software and aerospace industries as a part of its economy?

What is the life expectancy of a plastic bags

What is rain useful for? Why does it rain?