Mercury's magnetic field is generated by the same dynamo effect ...

[Medesa]

Mercury's magnetic field is generated by the same dynamo effect as Earth's.
 
  Indicate whether the statement is true or false

Question 2

If an object doubles its luminosity in 10 hours, how large can the emitting source of light be?
 
  A) about 10 light-hours across
  B) about 10 parsecs across
  C) about 10 light-years across
  D) varies depending on how luminous the object is
  E) varies depending on how far away the object is

[Carliemb17]

Answer to Question 1

FALSE

Answer to Question 2

A