It is important for countries to exchange currency so that goods from other nations can be

It is important for countries to exchange currency so that goods from other nations can be  traded.

Explanation:

Currency exchange and exchange rates are part of the economic and commercial connection imposed by globalization. The fact of the existence of different currencies in each country implies that, in order for them to be able to trade with their different products, they must establish a comparison parameter for each currency, with which the values of one can be transferred to another without being lost economic value.

Thus, each currency has a comparative value with the other currencies, with which value parameters are established that facilitate international trade.

b.

explanation:

he is racist

"oh, lets coppy china and build a great wall around bla bla bla.that way,we wont lose out to other countries." in the end, he did not build anything