Examlex
When water freezes, stable hydrogen bonds form between the water molecules that create an open, six-sided (hexagonal) arrangement.
Excise Tax
A tax imposed on specific goods, services, or activities, such as tobacco, alcohol, or gasoline, usually to raise revenue and discourage consumption of the taxed items.
Income Subsidy
Financial assistance provided by the government to individuals or groups to increase their income.
Indifference Curves
Graphical representations used in microeconomics to illustrate combinations of two goods between which a consumer is indifferent.
Optimal Utility
The highest level of satisfaction or benefit that a consumer can achieve given their resources.
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