Which layer contains convection currents

Convection currents are in the layer of the Earth called the mantle, which is located outside the inner core and outer core, but inside the upper mantle and crust.

are there any options you can choose from? ?

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.