Answer:
Many people own a copy of me. Without me the world would fall.
I run through hills. I veer around mountains. I leap over rivers. And crawl through the forests. Step out your door to find me.
I am rubber you can eat!
I can be cracked, made, told, and played. What am I?
If I have it I don't share it. If I share it I don't have it. What is it?
It flows out of the soil, It burns you if it boils, And holds us in its coils, More valuable than gold, As black as it is old.