Answer:
I touch the Earth, I touch the sky, but if I touch you, you’ll likely die. What am I?
No matter how little or how much you use me, you change me every month.
I am a rock group that has 4 members, all of whom are dead, one of which was assassinated. What am I?
You throw away my outside, you cook my inside. Then you eat my outside and you throw away my inside. What am I?
I start new then become old. Start clean but become dirty. I usually start big then become little. What am I?