Harlow Shapley found the Milky Way was:

Harlow Shapley found the Milky Way was:
 
  A) centered on the Earth.
  B) much smaller than previously thought.
  C) rapidly expanding.
  D) much larger than previously thought.
  E) uniformly spherical in shape.

Question 2

All stars are born with the same basic composition, yet stars can look quite different from one another. Which two factors primarily determine the characteristics of a star?
 
  A) its mass and its stage of life
  B) its apparent brightness and its distance
  C) its age and its location in the galaxy
  D) its mass and its surface temperature
  E) its apparent brightness and its luminosity

Question 3

Eros is the only asteroid upon which a spacecraft has landed.
 
  Indicate whether the statement is true or false

Question 4

Molecular spectra, like elemental ones, involve only the vibration of the particles.
 
  Indicate whether the statement is true or false