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How useful matter is to humans as a resource is determined by its concentration,availability for use,and its potential.
Opportunity Cost
The expense incurred from not choosing the second-best option available during decision-making.
Marginal Cost
The swell in aggregate expenditure due to the production of an additional unit of a product or service.
Environment Pollution
The contamination of the natural environment by harmful substances or activities, leading to adverse effects on ecosystems and human health.
Ethanol Subsidies
Financial incentives provided by governments to support the production, use, and development of ethanol as a form of renewable energy.
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