The spalling off of slabs of rock along sheet joints (similar to peeling layers from an onion) is called .

exfoliation

Explanation:

the spalling off of slabs of rock along sheet joints, similar to peeling layers from an onion. talus.

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.