Europa is located outside the Sun's habitable zone and yet may be ...

[anjilletteb]

Europa is located outside the Sun's habitable zone and yet may be habitable. How can this be?
 
  A) Europa's subsurface ocean contains lots of minerals that allow water to remain liquid at much lower temperatures
  B) Europa is continually being hit by comets and asteroids which keeps water beneath its surface liquid
  C) Europa is tidally heated, allowing liquid water to exist beneath its icy surface
  D) Europa is large enough to have appreciable heat trapped inside it to keep water beneath the surface liquid

Question 2

A pilot drops a bomb from a plane flying horizontally at a constant speed. When the bomb hits the ground, the horizontal location of the plane will
 
  A) be in front of the bomb.
  B) be over the bomb.
  C) be behind the bomb.

[dyrone]

Answer to Question 1

C

Answer to Question 2

B

[anjilletteb]

Excellent

[Missbam101]

Gracias!