Multiple Choice
The presence of iridium in the K-Pg boundary layer is evidence of ____.
A) a crater
B) a meteorite impact
C) a period of planetary cooling
D) dinosaur life
E) sedimentary rock
Correct Answer:

Verified
Correct Answer:
Verified
Q35: Which naturalist believed that environmental pressures caused
Q36: What popular belief of the time did
Q37: Who is credited with being the codiscoverer
Q38: Which term refers to the study of
Q39: The K-Pg boundary is found at the
Q41: Radioactive decay is influenced solely by _.<br>A)temperature<br>B)time<br>C)pressure<br>D)moisture<br>E)chemical
Q42: Carbon isotope dating is useful in studying
Q43: Naturalists were puzzled when they observed body
Q44: Match the description with the correct term.<br>-where
Q45: Zircon crystals form from volcanic rock. The