Answer:
I am easy to see but no one likes looking at me. Without me there would be no you. I can make you complain or make you happy. But you almost always take me for-granted.
I am the home for feathery animals.
I touch the Earth, I touch the sky, but if I touch you, you’ll likely die. What am I?
Open me, and you can't see me without a mirror. Close me and you can't see me at all. What am I?
People see through me, but none pass through without killing me. I can be anywhere, and can be seen double or single. What am I?
When is it bad luck to see a black cat?