Atex imposed on imported or exported goodies is called a

A tariff is a tax on imports or exports. Money collected under a tariff is called a duty or customs duty. Tariffs are used by governments to generate revenue or to protect domestic industries from competition.

yes.

explanation:

because it let the japanese know who had the upper hand in the war.

the structure was most likely used for;

c. playing a ball game with stone hoops