Answer:
If you lose me you may cause people around you to lose me too.
What bone has a sense of humor?
Digital white-out.
I'm tall I'm round and hollow Seems to get chewed a bit But you'll rarely see me unless the other end is lit.
I shift around though always slowly. I never move more than a few inches at a time. A large movement by me can kill many people. I am huge yet unseen by humans.
It produces a flower but it is not its fruitΝΎ it produces branches which are its fruit.