Answer:
I run smoother than any rhyme, I love to fall but cannot climb. What am I?
I am all around, yet to me you are half blind. Sunlight makes me invisible and difficult to find. What am I?
I am the minerals vital for your good health.
You throw me out when you use me and take me in when you are done.
I am black and white and full of fuzz
The answer I give is yes, but what I mean is no. What was the question?