Examlex
Placer deposits of metals are formed by:
Trade
The exchange of goods, services, or both between parties, which can occur domestically or internationally.
Perfectly Competitive Market
A market structure characterized by many sellers and buyers, homogeneous products, and the free entry and exit of firms, leading to efficient outcome prices.
Society
A group of individuals living together in a more or less ordered community, often sharing common cultural and social norms.
Public Park
An area of natural, semi-natural, or planted space set aside for human enjoyment and recreation or for the protection of wildlife or natural habitats.
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