Answer:
Explorers were able to learn more about places like America.
Answer: it is true because its hard to get air if a mine collapses
Explanation:
Answer:
Americans should avoid thoughts, beliefs, and actions that are partial.
Explanation:
The reason why the Mongols withdrew form Asia was because of horrible weather conditions and diseases. If I had to pick, I would pick A.) Diseases because A is more severe then the weather conditions.
I’m pretty sure using steel however the project got delayed by two years