What are the two major types of volcanic eruptions?

a. active, dormant

c. quiet, explosive

b. extinct, silica

d. none of the above?

With what astronomical event might the great serpent mound be associated

How do Earth's magnetic pole reversals provide evidence for plate tectonics? O A. Magnetic pole reversals can only be caused by plate movements. O B. Magnetic pole reversals only happen when the plates are stationary O C.

Which is a typical visual result when two continental plates of similar density collide with each other? A) earthquakes B) volcanoes C) mountain formation D) subduction zones E) ocean formation

What is the country of the origin of the terrorist who was arrested for shooting down Pan Am Flight 103 over Lockerbie, Scotland? A. Israel B. Palestine C. Lebanon D. Libya

Why did the Polar Bear population evolve to have such different fur?

What do stream terraces represent? Put another way, what were stream terraces before they became a terrace?

The American Revolution inspired the French Revolution. True False

Identify and explain three past or current consequences of the Partitioning of India in 1947.

Why is the black earth region in Russia called Black Earth?

The US counties that border Mexico have an unusually high percentage of people in which age group? A. 0-17 B. 18-39 C. 40-59 D. 60-79