Answer:
What can be cracked before it's used?
I am the beginning of the end and the end of time and space. I am essential to creation and I surround every place.
I am a vegetable that bugs stay away from
I am quick when Iβm thin. I am slow when Iβm fat. Wind is my worst nightmare.
I save lives on the ground and in the air
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?