The answer should be something like this:
how best to allocate scarce resources among competing uses.
Here is the answer that would best complete the given statement above. The governments of the United States, Mexico, and Canada created the North American Free Trade agreement in order to remove barriers to trading products between the three countries. The NAFTA is<span> an agreement signed by Canada, Mexico, and the United States, creating a trilateral trade bloc in North America.</span>
Answer: B. Annual river floods replaced the soil, which improved the crops.
Explanation: Annual floods enriched the soil by dragging nutrients through the water, improving and speeding the growth of crops.
The answer i would put would be d. dicrete
