Food shortages, natural disasters, disease, and can reduce population size

The correct answer would be - predation.

Explanation:

Predation is one of the limiting factors other than food, natural processes, shelter, temperature, and many others affect the population size. Predation is a relationship between these organisms, where a predator and eats the other organism that is prey.

Decrease in the population size can be caused by these limiting factors such as shortage in food, natural disasters, shelter, and predation.

Thus, the correct answer would be - predation.

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