Why do rivers flow slowly at plains?
plz it's urgent

River has strong currents when flowing down from its mountain source. By the time it reaches the plains it slows down due to absence of good gradients & increase in width; and it is placid when it approaches the sea. There could even be reverse flow with high tide when there could be silting that neutralizes any slope.

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.