Answer:
Inventions helped determine the very shape of the West. The telegraph instantly connected Americans across thousands of miles; railroads killed some towns and gave birth to others; the gun quickly established the settlers' dominance over the country; and barbed wire created vast ranching empires.
Explanation:
Answer:
1.
don't rely on me i'm just guessing
Explanation:
Answer: I put link in questions for your question and yes its for what you asked
the correct answer is D
it was related to the food supply
The early humans moved out Africa when the climatic condition in the region of East Africa Rift valley,where earliest stone tools were discovered became increasingly dry. Hunting as a source of food also became scarce as animals also spread out of the region. Subsequent strains in areas where they conquered led them to migrate further across the globe.