(Earth Science class) This is for my exam, I need help:

1- During which eon did Pangaea come together?
A) Phanerozoic
B) Archean
C) Hadean
D) Proterozoic

2- Explain how fossils were used to develop early geologic time scales.

an angle + its complement = 90 degrees

all fossil fuels are nonrenewable, so think coal, gasoline, things that we will eventually run out of. all fossil fuels are nonrenewable resources, but not all nonrenewable recourses are fossil fuels. these resources are not being renewed as fast as we are using them. i hope this considering there weren't any answer choices.