Different nations answer the what, how, and for whom questions differently. China, for instance, builds dams using many workers and only a little capital equipment. The United States builds dams using a few workers and a lot of capital equipment

Which economic question are these two nations answering and why do the answers differ?

The nations are answering the "how" question because they are determining how to produce a dam. In the main part, the answers differ because the nations have different amounts of capital equipment and labor. China has more people and less capital equipment. Hence it makes sense for China to build dams using many workers and only a little capital equipment. The U.S. has more capital equipment and less labor. Thus it makes sense for the United States to build dams using a lot of capital equipment and only a few workers.