The Tharsis Bulge on Mars is roughly the size of:

The Tharsis Bulge on Mars is roughly the size of:
 
  A) Mexico.
  B) Asia.
  C) Texas.
  D) North America.
  E) New York City.

Question 2

In what sense is all observable deuterium primordial? Why is its abundance so important in cosmology?
 
  What will be an ideal response?

Question 3

Imagine that an alien spaceship crashed onto Earth. Which statement would most likely be true?
 
  A) The aliens' home world is another planet in our own solar system.
  B) The crash would create a noticeable crater.
  C) All the evidence of the crash would be quickly whisked off by the U.S. military to Area 51 in Nevada.
  D) It would crash in the ocean.

Question 4

A spacecraft traveling through the asteroid belt has a high risk of being destroyed through a collision.
 
  Indicate whether the statement is true or false

Question 5

Pluto's bulk density is:
 
  A) 3,400 kg/m3, comparable to our Moon's.
  B) 2,100 kg/m3, similar to Callisto's mix of rock and ice.
  C) 1,200 kg/m3, like Mimas, made of almost pure ice.
  D) 700 kg/m3, like Saturn a mix of hydrogen and helium slush.
  E) 400 kg/m3, like Comet Halley's nucleus, a ice ball with many gas pockets.