Alfred Wegener was a German meteorologist and scientist who in the early 20th century, proposed the theory of "continental drift", which states that the continents used to be joint and they have been drifting away from one another.
His theory was rejected by the scientific community, because although it is based on findings of both plants and animal species in matching sides of different continents, it lacks an explanation regarding what forces, make the continents drift.
The Silk Road began as a way for countries to trade things such as Silk, Horses, Nephrite Jade, Lapis Lazuli, Spinel, etc...
Hey, it's b because slavery was the main thing that supported the South's economy - hope this helps :)
Answer:
By June of 56 BC, Caesar became the first Roman to cross the Rhine into Germanic territory. In so doing, an enormous wooden bridge was built in only 10 days, stretching over 300 feet across the great river.
Explanation:
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50 years, 5 months and 11 days
