Increased crop productivity
The answer would be President Dwight D. Eisenhower
Answer:

Step-by-step explanation:
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Explanation:
Dr. Marcus Whitman (1802-1847),his wife Narcissa Prentiss Whitman ...The atta k,a pivotal event in northwest history . will lead to a war of retaliation ... " He wanted to see the country settled," wrote Reverend Henry K. Perkins ... Tribal leaders made several efforts to get the Whitman's to leave, to the point of
Cannot support its population or promote any more growth