Answer:
When I type I tap these on the keys
No matter how little or how much you use me, you change me every month. What am I?
What has many keys but cannot open a single lock or door?
It weighs next to nothing but no one can hold it for long. What is it?
A canvas full of stars.
I touch the Earth, I touch the sky, but if I touch you, you’ll likely die. What am I?