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When an arc occurs, explosive expansion causes molten metal to be thrown through the air and onto the skin or into the eyes of an electrical worker.The high pressure that results from a/an ____________________ can rupture eardrums and knock people off ladders and scaffolding.
Economy
The system by which goods and services are produced, distributed, and consumed in a society or geographic area.
Goods And Services
Goods and services constitute the output of an economy, where goods are tangible products and services are intangible activities that provide value to consumers.
Scarcity
The limited nature of society’s resources.
Trade-Offs
Situations where having more of one thing necessarily means having less of another because of limited resources.
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