PLZ HELP I WILL GIVE U BRAINLIST How did the Ming dynasty expand and improve Chinese agriculture?

Farmers focused on growing traditional crops.
The government raised taxes to repair farmland.
Land was taken from the wealthy to use for agriculture.
Agricultural workers used old methods such as crop rotation.

Why were americans concerned about the future of north and south america? check all of the boxes that apply. they worried that european countries would take over independent countries in latin america. they thought that european nations could threaten democracy in the united states. they believed that europe would never again return to the americas.