Distribution of Natural Resources: Mastery Test 3 Select the correct text in the passage. Which two sentences describe a trade relationship between countries? China, Australia, and South Africa have large reserves of gold, and Chile has a large amount of copper. The United States produces a lot of coal. While some of it is used for domestic consumption, it exports several million short tons around the world. This helps countries that lack natural energy resources. Being able to import from other countries is one way to maintain their economies. A careful management of resources is important for sustainability