One important reason for climate change in the late Cretaceous ...

[gonzo233]

One important reason for climate change in the late Cretaceous period was
 
  a. the sun cooled off.
  b. a dust bowl.
  c. continental merger.
  d. continental drift.

Question 2

Excavation has two goals: to find every scrap of evidence (or a statistically
  representative sample) about the past that a given site holds and to
 
  a. find the buried treasure there.
  b. prove that evolution is a fact.
  c. find the missing link.
  d. record the horizontal and vertical location of that evidence with precision.

[cascooper22]

Answer to Question 1

d

Answer to Question 2

d

[gonzo233]

Excellent

[alvinum]

Gracias!