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umka2103 [35]
3 years ago
15

Typical rates of sea-floor spreading are approximately _____. 50 centimeters per year 5 centimeters per year 5 kilometers per ye

ar 5 meters per year
History
1 answer:
alina1380 [7]3 years ago
4 0

Answer:

5 centimeters

Explanation:

The seafloor is spreading at rates of around 5 cm usually, though it can go up to 16 cm per year but rarely. The seafloor spreading is caused by the geological activity at the places where there's divergent plate boundaries. As the plates move away from one another they leave thin and fragile crust behind which is easy to break through for the magma. As the magma gets through and reaches the water, it starts to cool off very quickly, constantly pulling up and creating new crust, pushing the old crust sideways and further away from the divergent boundary.

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Which statement accurately describes an important effect of the columbian exchange on indigenous peoples in the Americas
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A. Huge numbers of indigenous peoples were wiped out by European diseases.

B. Indigenous peoples embraced the Catholic Church and became its most powerful leaders.

C. American empires became more powerful than ever by using European weapons.

D. Violence committed by Christians led many indigenous peoples to become devout Muslims

Answer:

A. Huge numbers of indigenous peoples were wiped out by European diseases.

Explanation:

Christopher Columbus was a very popular Italian voyager, navigator and explorer who completed four voyages (1492–93, 1493–96, 1498–1500, and 1502–04 respectively) across the Atlantic Ocean. Columbus was born to a wool merchant in 1451 in Genoa, Italy and he died 20th of May, 1506 in Valladolid, Spain. ​

Columbus wanted to reach Asia by sailing west across the Atlantic Ocean. In his thinking, he thought going through that route (Atlantic Ocean) was a more direct way to get to Asia by water.

On a related note, the Columbian Exchange was named after the very popular voyager and explorer, Christopher Columbus. Columbian Exchange is also referred to as the Columbian Interchange and typically involved the widespread movement of commodities, plants, technology, cultures, diseases, people and animals across West Africa, the Atlantic, America and the Old world (Europe, Asia, and Africa) as far back as in the 15th and 16th century.

The most likely impact of the Columbian Exchange was the transfer of diseases, ideas, and livestock from Europe to the Americas.

Some examples of the animals transferred from Europe to the Americas are goats, sheep, cattle, chickens, rats and pigs. The diseases transferred from Europe to the Americas, for which they had no immunity include typhoid, cholera measles, and smallpox.

Hence, an important effect of the columbian exchange on the indigenous people in the Americas was that, a huge number of indigenous peoples were wiped out by European diseases.

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