Answer:
No matter how little or how much you use me, you change me every month.
Power enough to smash ships and crush roofs. Yet it still must fear the sun.
What has three feet but no arms or legs?
One by one we fall from heaven down into the depths of past, And our world is ever upturned so that yet some time we’ll last.
When I'm born I fly. When I'm alive I lay. When I'm dead I run.
I am the kind of an ant that's good at math. What am I?