Waterways that carry water to crop ~ mesopotamia

the correct answer is ) possibility.

demonstrating opportunity cost is done through production possibility.

the opportunity cost can be demonstrated using the production possibility frontier or curve. this graphic shows the total number of possibilities for two products when we have the resources needed and used in an efficient manner. the main resources could be money, labor, and technology. the curve shows that the production of one good increases when the production of the othe

stewards ice box was the purchase of alaska from russia and it was called that because people thought it was not a good idea to purchase alaska