Answer:
This is the main ingredient in spaghetti and Mac-ยญN-ยญCheese.
The more you have of me, the less you see. Who am I?
A big shiny black car nobody wants to be a passenger in.
It is a gruesome form of betray.
I am the first you ever saw, what greets you every morning and what goes out in the end.
What is the middle of water but is not an island?