Using leather to clothe ourselves is n example of using plants as what kind of source to fulfill our needs? A. Direct source
B. Indirect source
C. Food chain source
D. Inverse source

Which situation is the best example of opportunity cost? a country chooses to produce bananas instead of wheat. a country chooses to invest in manufacturing and agriculture. a country chooses to specialize in producing paper products. a country chooses to export all of its products.