This has historically be true for many colonies, such as those of Spain and Britain, but many colonies were started for the sole benefit of the colonists themselves.
Plantations
The flat land was good for farming and so the landowners built very large farms called plantations. The crops that were grown were called cash crops because they were harvested for the specific purpose of selling to others.
Answer:
The Aztecs were extremely warlike, their entire empire centered around war, and they were settled in a swampy island in Lake Texcoco, in what is today central Mexico. They also built temples.
The Incas had a centralized government and their civilization was centered around religion, so they built many temples. The Incas were also chose diplomacy before war, but if the people they were bargaining with refused the offer, they would use force to get what they wanted.
I'm not really sure what they mean by North American and South America, but I hope the information I gave above helps at least a little. If it does, could you mark it brainliest? :)