Proxy data: A) can only extend the temperature record back an ...

[Evvie72]

Proxy data:
 
  A) can only extend the temperature record back an additional 500 years.
  B) come quality-controlled instrument records.
  C) provide climate data representing times when instruments were not available to measure them.
  D) are difficult to find because they occur only in very limited areas.

Question 2

The general term applied to warm air moving up over a colder air mass is:
 
  A) cold front. B) overrunning. C) orographic lifting. D) warm front.

[sultansheikh]

Answer to Question 1

C

Answer to Question 2

B