This is true weight gain can effect a lot of things
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im sorry i just saw that you were on here six seconds so i figured you would be on here can you plz answer my question all i had was 12 points so i can only give 12 points
Explanation:
The benefits of strength training improved bone health, decreased risk of injury, increased strength, and controls body fat.
Answer:
Natural factors of population change can't be swayed by humans. So for an example of a natural factor take an Earthquake. As of right now we can only predict when Earthquakes will. Inevitably some things will still get damaged and that just can't be helped. An Artificial factor for population change is something specifically made by humans. For an example take a genocide. If some guy decides he wants to go on a killing spree, well all I can say is that is Definitely not natural. Hope that helped.