Examlex
An efficient allocation of resources requires each product's price to equal its marginal cost.
World's Population
The total number of living humans on Earth at a given time.
Fossil Fuels
Natural fuels such as coal, oil, and natural gas formed from the fossilized remains of ancient plants and animals.
Nuclear Power Plants
Facilities that generate electricity by using heat from nuclear reactions to produce steam which turns turbines.
Renewable Sources
Energy sources that are naturally replenished on a human timescale such as solar, wind, hydroelectric, and geothermal power.
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