Timbuktu was a place where ideas were shared and quickly became a center for learning.
Most isolationists felt that there was no need for americans to feel threatened by developments in Europe and Asia because the vast pacific and atlantic oceans insulated the country from troubles in those regions, and the United States had formed friendly alliances with all the other nations in the Western hemisphere.
Human effort is one of the resources of production describes human effort in economics
Answer: Option B
<u>Explanation:</u>
Human effort is one of the resources of production. Human efforts typically refers to the labor that the humans put in in the production process. Human efforts are made use of in the production of goods and services. For most production processes, human effort is a central and main activity.
This is because without human effort or labor, the production process may suffer from hindrances and obstacles. Humans tend to possess the skills that can be used in the production of goods and services that are of use in an economy.