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The melting point is reached when sufficient energy has been added to the molecules in a substance to overcome the intermolecular forces holding them stationary.
Topographical Map
A type of map characterized by large-scale detail and quantitative representation of relief, usually using contour lines.
Indifference Map
A set of indifference curves, each representing a different level of utility, that together show the preferences of a consumer.
Budget Line
A graphical representation of all possible combinations of two goods that can be purchased with a given budget at fixed prices.
Money Income
The total amount of monetary earnings or inflow received by an individual or entity, typically measured within a certain time period.
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