It should be Kepler. I believe his full name is Johannes Kepler.
Answer:
sorry
I'm sorry because I am not answer8ng your qustions I'm answering my own. please go to my page and answer my most resant qustion. please
Competition for territory and resources, historical group action and grudges are the reason people go on wars.
<h3>Why
war happened?</h3>
War happened because of many reasons like self-defense against an attacker or a perceived potential aggressor are all reasons why people fight, Economic Gain, Territorial Gain, Religion, Nationalism, Revenge and other.
Thus, Competition for territory and resources.
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when productivity increases, the standard of living increases because income grows.
productivity is directly proportional to the standard of living.