They get combined with Oxygen and lead to bad taste and bad smell in food .To prevent it Nitrogen gas is flushed in packets of oily and fatty food to cut-off the supply of Oxygen.
if you put potatoes near salt it while dry them out.
Microorganisms cause chicken to spoil.
Decomposition.
Some do.
The eggs and dairy within the mayonaise have the potential to spoil, especially outdoors when exposed to heat in the air and to sunlight. Uncooked eggs are also a common source of salmonella.
bad bacteria
Milk can spoil within a few days to a week, depending on factors like temperature, light exposure, and contamination. Factors that can affect its shelf life include proper refrigeration, packaging, and pasteurization.
Potato salad will never be as good as when it was first made. Use it within a day or two. Depending on what you put in your potato salad will depend on how long your salad will last. If you put eggs in your salad then you have 3 days to use it up in. If you omit the eggs then you have about 5 days as long as the salad doesn't sit out and get warm since it has mayonnaise in it.
Bacteria
Free Radicals
Yes, for several hours. A baked potato, especially if the skin is intact, is not likely to spoil at room temperature. OTOH, it would be wiser to refrigerate cooked potatoes to be completely safe.
I heard chameleons have a very heavy potato based diet. Sometimes they might spoil themselves and eat some houses but thats about it.