I have to imagine that it'd look just like unspoiled oatmeal, only maybe with a little mold.
mold bread has green fungus growing out of it. stale means old but stiff and hard...i think
Eventually it can do that. Mold can grow on bread as well as any other food. Airborne mold spores only require a moist environment to thrive and colonize. This process is not as rapid though as compared to mold forming on food in a warmer environment.
So that it does not spoil, mold, or get stale.
Usually cookies go stale not moldy.
Yes they can. Just like whole loaves of bread and slices of bread, bread crumbs can expire.
Yes
No. That substance is called mold.
It looKs like mold
It will smell and may have mold on it. The mold can be yellowish in color.
like white cottony of fungus
it is green , and dotty and bloby
leaves a hole, or cavity, in the rock.