Which of the following encourages trade between regions?
Answer Details
The option that encourages trade between regions is "differences in natural resources." This is because different regions have different resources available to them, and they may not have access to all the resources they need. When regions trade with each other, they can exchange the resources they have for the ones they lack, leading to mutual benefits. For instance, a country with abundant mineral resources can trade with another country that has a lot of fertile land, and both countries will benefit from the exchange.
While the other options can also have an impact on trade, they may not necessarily encourage it. For example, differences in currencies can make trade more complicated and expensive due to the need for currency exchange. Differences in national income can create inequalities and make it difficult for countries with lower incomes to participate in trade. Trade associations can facilitate trade, but they do not necessarily encourage it in the first place.