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Briefly summarize the component parts (e.g., heat from the tropics, dense salt water, melting ice, etc.) of the ocean currents as they travel from the North Atlantic to the Pacific and back.
Marginal Utility
The additional satisfaction or benefit (utility) that a consumer derives from consuming one more unit of a good or service.
Optimum
The most favorable condition or highest achievable level of efficiency under the given circumstances.
Indifference Curves
Graphical representations in economics that show combinations of goods among which a consumer is indifferent.
Upward-sloping
A term used in economics to describe a curve that represents an increase in one variable as another variable increases, often used in the context of supply curves.
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