Answer:
I plow and plow but never sow.
The more you take, the more you leave behind. What are they?
I am lighter than air, but a hundred people cannot lift me. Careful, I am fragile. What am I?
I am carried by mad animals.
I can be cracked, made, told, and played. What am I?
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?