Question 4: K is the
traditional abbreviation for the ________Period derived
from the German name Kreidezeit, and
T is the abbreviation for the Tertiary Period (a historical term for the
period of time now covered by the Paleogene and Neogene periods).
Question 10:  A very
small number of dinosaur fossils have been found above the K–T
boundary, but they have been explained as reworked, that
is, fossils that have been eroded from their original locations
then preserved in later ________ layers.