In 1900, 40% of the US labor force worked in agriculture. A hundred years later, in 2000, only 2% worked in agriculture. What is an important reason for this change?

What was the result of president taft's "dollar diplomacy

This was an act of continental congress which initially organized the first united states territory and was to be the basis for governing how the united states would expand westward.

Which factor contributed to the rise of african empires such as ghana and mali ? a. their creation and involvement in trade networks b. they focused only on agricultural production. c. they didn’t engage in warfare with other nations d. their geographic location protected them from attacks.