Answer:
The cultures of Indigenous people in North America show that despite commonalities, Native cultures varied greatly.
Explanation:
The first option is not correct because there were a lot of Native groups in North America, not just two.
The second option is correct because the Native cultures did share some basic commonalities, but there was an abundance of cultural variations across the continent, which shouldn't come as a surprise considering the different environments and resources that different groups had at disposal.
The third option is not correct because North America had numerous civilizations, though it can be said that there was a much higher concentration of civilizations in some areas than others.
The fourth option is not correct because there were huge differences between the different cultural groups, so much so that when compared they were almost totally alien to each other.
The answer to the question above is the Vietnamization.
United States President Richard Nixon's plan for the United States troops to gradually withdraw as South Vietnamese government forces assumed more combat duties was known as Vietnamization. It was Nixon administration policy to end the United States' involvement in the Vietnam War.
When the western Roman empire collapsed in 476 AD, the unifying force for most of Europe was gone. Along with the loss of the government, much of the engineering abilities and "modern amenities" were also lost. The "barbarians" of Europe did not, for the most part, have the abilities or knowledge to build roads, aqueducts or the other marvels of the Roman Empire, which is why the period immediately after Rome's collapse is often referred to as the "Dark Ages".
The only unifying force of any sort left would be Constantine's Roman Catholic church, which did manage to preserve some of the knowledge and vestiges of the empire. As the only thing left really, it became the main power in the European world throughout the Middle Ages, functioning almost as an imperial government until Luther set off the Reformation in 1546.
Answer:
1. The Portuguese establish sugar plantations on islands off the coast of West Africa;
2. Portuguese laborers are unwilling to leave their homeland;
3. The Portuguese bring in slaves to work on their plantations;
4. Other European countries also start purchasing enslaved Africans;
The Portuguese didn't really investigated the situation about the labor force before they make sugar plantations, so they set them up, and it turned out that the Portuguese people are not willing to come and work on them, so they were left with plantations without laborers. Since they didn't wanted this investment to be for nothing, they started buying African slaves from some of the stronger tribes that were keeping slaves. They used them as labor force afterwards, and saw the long term benefit of it, so started to purchase more and more slaves. After the word spread out, and also after the other European countries started to have colonies, they too started to purchase African slaves, thus making it a huge business for both, them and the stronger African tribes that were selling the slaves to them.
Explanation:
