Answer:
The internal combustion engine.
Explanation:
it was powered by by externally-produced steam.
Answer:
when Paleolithic hunter-gatherers entered North America from the North Asian Mammoth steppe via the Beringia land bridge
Explanation:
Answer:
Race” refers to physical differences that groups and cultures consider socially significant, while “ethnicity” refers to shared culture, such as language, ancestry, practices, and beliefs.