Answer:
What is filled with air and sometimes a gas, tied to a string and often seen on your birthday?
What loses its head every morning only to get it back every night?
What can't you see, hear or feel, until itβs too late. What shadows love, and shopkeepers hate?
This is a dead giveaway
Makes apples fall from trees
I touch the Earth, I touch the sky, but if I touch you, youβll likely die. What am I?