The surface of Venus is hotter than the surface of Mercury.

The surface of Venus is hotter than the surface of Mercury.
 
  a. True
  b. False
  Indicate whether the statement is true or false

Question 2

Venus is the planet closest to Earth in mass.
 
  a. True
  b. False
  Indicate whether the statement is true or false

Question 3

Astronomers on Earth are able to measure the rotation of Venus by using optical telescopes to watch surface markings as rotation carries them across the disk of Venus.
 
  a. True
  b. False
  Indicate whether the statement is true or false

Question 4

The absence of folded mountain ranges on Mars suggests that it has been subjected to plate tectonics.
 
  a. True
  b. False
  Indicate whether the statement is true or false

Question 5

The size of Olympus Mons suggests that the crust of Mars is very thick.
 
  a. True
  b. False
  Indicate whether the statement is true or false