B:American contributions to the columbian exchange
Answer:
Through different methods.
Explanation:
1. Portugal's location helped them a lot, they had easy access to the Mediterranean. Their fishermen gave a lot of information on the behaviors of the Atlantic, which in turn gave the Portuguese essential knowledge on how to train their sailors, how to perform their deep sea exploration, and things to document about their history.
2. Their ships. Each of the ships they sailed gave them a better understanding of the conditions required for safe travel across water.
3. Last but not least, religion. Jewish people driven out of Spain took refuge in Portugal and spread their beliefs, which received a small degree of persecution, yet still managed to root its place in Portugal, and serve as its advantage in trading with a wider range of countries.
Answer:
B. arrive in Asia; arrive in the Americas
Explanation:
The Homo Sapiens has started off in Africa. As the numbers were increasing, climate was changing, and the resources were becoming less and less, the species started to migrate out if its cradle. The migration was going from Africa to the Middle East initially, as well as in Europe through Gibraltar.
Gradually, the Homo Sapiens managed to take over the territory of the Neanderthals, and it started to spread out more and more across Eurasia. The migrations didn't stopped there though, but the humans continued through the islands of Southeast Asia and eventually reached Australia, later continuing in the Pacific Islands.
Part of the populations that lived in Eastern and central Siberia started migrated in few waves through the Bering Strait in North America, moving south and reaching Central and South America.
