Why do scientists say that evolution is a theory?
A) because it explains a great deal about life and is supported by an enormous body of evidence
B) because they are not very confident that it really happened
C) because it is supported by only a small amount of evidence
D) because it's really just a guess about how life developed on Earth
Question 2
Blue stragglers are only found in ________.
Fill in the blank(s) with correct word