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To determine the age of sedimentary rocks containing fossils, ____________________ zones are established, plotting the overlapping geologic ranges of different species of fossils.
Studying
The act of devoting time and attention to gaining knowledge of an academic subject.
Costs
Expenses incurred in the production of goods or services, including materials, labor, and overhead.
Marginal Analysis
An examination of the benefits and costs of increasing or decreasing production or consumption by one unit.
Revenue
The complete financial proceeds a company secures from conducting sales of goods and execution of services within a predetermined interval.
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