Examlex
If one outlet pipe can drain a pipe in 24 hours and another pipe can drain the tank in 36 hours, how long will it take for both pipes to drain the tank?
Natural Resources
Materials or substances such as minerals, forests, water, and fertile land that exist in nature and can be used for economic gain.
Opportunity Cost
The act of losing possible benefits from other routes when a single path is chosen.
Trade
The exchange of goods and services between individuals, businesses, or countries, which can be domestic or international in nature.
Corn
A cereal plant that yields large kernels on a cob, used as food for humans and livestock and as a raw material in industry.
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