Please say brainlest.
1. An ancient network or trade routes.
2. Silk, spices, sugar, teas, cotton, etc were traded.
3. Europeans wanted to find riches, claim new land for their country, and increase trade.
4. Caravels were small fast sailing ship used from the 15-17 centuries.
5. They were used to make astronomical measurements.
6. They sailed around the continent of Africa.
The answer to this question is:
How did the success of Portugal's exploration of Africa affect Spain?
"It Required Spain to leave the eastern route of Africa so they can so they can head to the east"
Hoped This Helped, Nanobite11
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Some scientists think the first migrants to the Americas came by boat.
Some scientists think the first migrants to the Americas came by crossing a land bridge.
Most scientists believe the first migrants came to North America from Asia.
Explanation:
In the past century there has been a consensus about the migration of people to the Americas. It was commonly accepted that the first humans in the Americas came at the end of the last Ice Age. The hypothesis says that they came by a land bridge that existed between North America and Eurasia, and that their origin was from what is now Siberia, or rather from central and eastern North Asia. This has been and still is the most accepted hypothesis.
In the past couple of decades though the view on this hypothesis started to change. Lot of new evidence emerged that suggest that this hypothesis is flawed so more and more scientist are not supporting it.
There has been new sites where remains of human activities have been found and they predate what was suggested by tens of thousands of years. The genetic studies are suggesting that there are groups of people that originated from Polynesia and from Northern Europe. In Mesoamerica and in the Amazon there are multiple groups of people that have Polynesia genes, while some Native Americans in the eastern part of North America have European genes. This means that people migrated not just from Asia, but also from Northern Europe (by a boat or through a land bridge), and by a boat though the Pacific Ocean.
The Tenth Amendment declares, "The powers not delegated to the United States by the Constitution, nor prohibited by it to the states, are reserved to the states respectively, or to the people." In other words, states have all powers not granted to the federal government by the Constitution.
