The oldest rocks on our crust are radioactively dated at about: ...

[809779]

The oldest rocks on our crust are radioactively dated at about:
 
  A) 200 million years old.
  B) one billion years old.
  C) 2.7 billion years old.
  D) four billion years old.
  E) 4.6 billion years old.

Question 2

When the Moon is directly opposite the Sun in the sky, its phase is:
 
  A) new.
  B) waxing or waning crescent.
  C) first or third quarter.
  D) waxing or waning gibbous.
  E) full.

[amandanbreshears]

Answer to Question 1

D

Answer to Question 2

E

[809779]

Both answers were spot on, thank you once again

[amandanbreshears]

Great! Please up vote