Answer:
Dust bowl
Explanation:
When farmers where looking for new land to start up crops because of a drought
Incentives, initiative, prices, decisions
Incentives such as taking initiative interpreting prices , making their own decisions and fending for themselves in the marketplace
Marie curie - discovered new elements
Louis Pasteur- created vaccines
Gregor Mendel- discovered heredity
Joseph lister - proved the importance of sterilizing medical equipment
George Washington carver- pioneered new agricultural techniques