Answer:
I am essential to life on earth! I am split into thirds. Two thirds are the same. One of the thirds is 8. The other two are 1 each.
I am easy to waste and unstoppable
I turn everything around, but I cannot move. When you see me, you see you! What am I?
Which word is the odd one out: first second third fourth fifth sixth seventh eighth?
You can catch me but cannot throw me. What am I?
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?