Answer:
1. d. discovering America
2. b. By foot
3. c. Ancient travelers that crossed a land bridge.
4. b. there were already people living here before the explorers.
5. What connected Asia and North America is the land bridge called Beringia.
6. According to this passage, America was ancient travelers that crossed Beringia, a land bridge. This is true because from the passage, we discover that the ancient travelers settled down in America long before the European explorers. An evidence from the passage is: "I read that there were people living in America long before the European explorers were even born...once they arrived, they slowly spread out. Eventually, they settled all over North and South America".
Step-by-step explanation:
From the passage, we see that the main idea centers on the discovery of America. The passage reveals that there were ancient travelers that lived in America long before European explorers arrived. The ancient travelers were known have crossed the land bridge, Beringia. This land bridge is known to have connected Asia and America.
The ancient travelers that settled in America are known to have crossed the the land bridge on foot.