Examlex
________ are groups of the same kinds of atoms that cannot be broken down into other substances by ordinary chemical means.
Progressive Tax System
A tax system where the tax rate increases as the taxable amount or income increases, effectively imposing a higher percentage rate on those who earn more.
Regressive Tax
A tax system where the tax rate decreases as the taxable amount increases, placing a higher burden on lower-income earners relative to their income.
Income Groups
Categories of people classified according to the level of their income, often used in socio-economic and market research to analyze spending habits, needs, and trends.
Lump-Sum
A single payment made at a particular time, as opposed to a series of smaller payments or installments.
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