The orbit of Mercury is circular.

The orbit of Mercury is circular.
 
  a. True
  b. False
  Indicate whether the statement is true or false

Question 2

The Babcock model employs differential rotation of the solar surface and a magnetic dynamo to describe the formation of sunspots.
 
  a. True
  b. False
  Indicate whether the statement is true or false

Question 3

Kepler's second law is about the speed of planets, where planets move faster at perihelion and slower at aphelion.
 
  a. True
  b. False
  Indicate whether the statement is true or false

Question 4

Sunspots are hotter than the photosphere.
 
  a. True
  b. False
  Indicate whether the statement is true or false

Question 5

Kepler's first law is about planets orbiting a host star in the shape of an ellipse with the host star at the center of the ellipse.
 
  a. True
  b. False
  Indicate whether the statement is true or false

Question 6

The Zeeman effect shows that sunspots contain magnetic fields.
 
  a. True
  b. False
  Indicate whether the statement is true or false