Hello, I’m studying for my TOEFL exam. I would like to know if this writing is understandable. Thanks.

Explain the two main theories on why aggression exist.


There are two main theories on Why human aggression exists. One of it is that aggression is product of evolution and men are more common or likely to act this way, because they feel they have to protect what they think they own, but some others disagree on this theory because they think that aggression comes from a social learning thing, since we are exposed to a certain environment , our behavior starts getting things out of it. So the more you Are exposed to an aggressive environment the more likely you are to act this way.