If you could drill from the outer surface of Earth all the way to the center, you would pass first through the crust, then through the ___________________ _, and finally through the ___________________ __.
Fill in the blank(s) with correct word
Question 2
Ungulates include orders of mammals, which are all ____.
A)three-toed
B)hoofed
C)herbivores
D)large
E)hoofed herbivores