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Studying population growth also helps scientists understand what causes changes in population sizes and growth rates. ... Finally, studying population growth gives scientists insight into how organisms interact with each other and with their environments.
There are some benefits of overpopulation, more people means more labor force, it can product more things, and more people will buy the products, However, the growth of population should be similar to the food supply, so overpopulation will cause lack of food, and as the rate of growth of population exceeds the rate of population
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