What characteristic distinguishes a meteorite from a terrestrial ...

[Haya94]

What characteristic distinguishes a meteorite from a terrestrial rock?
 
  A) A meteorite is usually covered with a dark crust from burning in Earth's atmosphere.
  B) A meteorite usually has a high metal content.
  C) Meteorites have different isotope ratios of particular elements when compared to terrestrial rocks.
  D) Meteorites contain rare elements, such as iridium, that terrestrial rocks do not.
  E) All of the above are true.

Question 2

From stage 4 to stage 7 of star formation, the object plotted on the H-R diagram moves so that:
 
  A) its luminosity decreases, while its temperature increases.
  B) its luminosity decreases, while its temperature stays the same.
  C) its luminosity increases, while its temperature increases.
  D) its luminosity increases, while its temperature stays the same.
  E) its luminosity stays the same, and its temperature stays the same.

[amcvicar]

Answer to Question 1

E

Answer to Question 2

A

[Haya94]

Excellent

[matt95]

TYSM