Which of the following are true statements about david hilbert?
a he invented the point.
b he was a german mathematician.
c he developed hilbert's axioms.
d he wrote a biography on euclid.
e hilbert's improvements to geometry are still used in textbooks today.

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.