One difference between a fundamental niche and a realized niche is that___? A. the fundamental niche is always larger
B. the realized niche may be less extensive
C. the fundamental niche is always smaller
D. the realized niche is the preferred niche

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.