Examlex
The basic tools of supply and demand are central to microeconomic analysis but are of little use to macroeconomics.
Mining
Mining is the extraction of valuable minerals or other geological materials from the Earth, usually from an orebody, lode, vein, seam, reef, or placer deposit.
Air Pollution
Contamination of the air by harmful substances including gases, particulates, and biological molecules, often resulting from human activities.
Depletion Time
The period it takes for a non-renewable resource to be exhausted at its current rate of use.
Mining Technology
The collection of techniques, methods, or processes used in the extraction of minerals or raw materials from the earth.
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