Examlex
The burning of coal and oil significantly contributes to industrial smog.
Trade Surplus
A situation where a country exports more goods and services than it imports.
Exports
Goods or services produced in one country and sold to buyers in another, contributing to a country's gross domestic product.
Imports
Items or services acquired from overseas to be sold within a country.
Balanced Trade
A situation in which the value of a country's exports equals the value of its imports over a certain period.
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