What Am I Riddles

Question: Thousands of orphans who lost their old home,
found by others who have lost their own.
To hide a secret that is obvious to all,
becomes even more obvious when the host falls.

What am I?

Question: You can easily touch me, but not see me.
You can throw me out, but not away.

What am I?

Question: I have eight to spare and am covered with hair.

What am I?

Question: I can hurt you unbearably and can't be touched. What am I?

Question: If you aim to give us a shot, we'll riddle you.

What are we?