What do we mean by a runaway greenhouse effect? A) a ...

[panfilo]

What do we mean by a runaway greenhouse effect?
 
  A) a greenhouse effect that starts on a planet but later disappears as gases are lost to space
  B) a greenhouse effect that heats a planet so much that its surface rock melts
  C) a process that heats a planet like a greenhouse effect, but that involves a completely different mechanism of heating that doesn't actually involve greenhouse gases
  D) a greenhouse effect that keeps getting stronger until all of a planet's greenhouse gases are in its atmosphere

Question 2

Neutron stars and black holes are formed by
 
  A) the star formation process.
  B) mass transfer in binary star systems.
  C) novae.
  D) type I supernovae.
  E) type II supernovae.

[jasonq]

Answer to Question 1

D

Answer to Question 2

E

[panfilo]

Excellent

[Perkypinki]

TYSM