The primary motives of European explorers were economic. The supply of precious metals was finite, and monarchs hoped to find large deposits of gold and silver in the Americas. Aside from the possibility of treasure, the European governments aimed to find a passage through the Americas to Asia.
Plows and irrigation
This was the only one that really made since for landscape
B. Dwight Eisenhower became president in 1952
Hope this helps
i beileive the correct answer is B
