Answer:
McCormick's reaper ensured that raising wheat would remain the main economic activity in the Midwest. New machines and new improvements in transportation helped farmers plant more acres of cash crops, crops planted strictly for sale. hope this helped
C. unemployment it might be right
Answer:
They made tools from stone
I can’t see any possible options but secondary sources and online sources should be double checked and avoided if possible. few secondary sources are trustworthy like textbooks