Rivers, mountain ranges, historical points (railway, a wall, etc.)
Most country borders are divided by geographical points, and sometime just for political and historical reasons (what belonged, and waht should belong to whom).
Hope it helped,
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Answer: OPERANT: RESPONDENT.
Explanation: Operant behavior operates on the environment,
Respondent behavior occurs as an automatic response to some stimulus.
Operant behavior can be defined as a way of conduct through positive and negative reinforcement and positive and negative punishment. This occurs as a result of Response to circumstances surrounding an individual.
Respondent behavior can be defined as a conduct that occurs as a result of an answer or reply to some stimuli.
Answer: Immigrant
Explanation:An immigrant is a person who comes to live in a foreign country permanently. Immigration is the term used to describe the movement of people into another country like the case of Lourdes who was born in Venezuela but Emmigrated out of Venezuela and immigrated into United States of America to seek permanent citizenship. Their are several permanent citizens of the United States of America who are immigrants from other countries if the World.
I truly think that the beat way we can improve nationality and a better sense of comunity for america is sticking together