Why Can Biological Weathering Be Categorized as Both Physical and Chemical

question 24

Essay

Why can biological weathering be categorized as both physical and chemical weathering? ​

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Definitions:

Materials Price Variance

The difference between the actual cost of materials purchased and the expected (standard) cost, multiplied by the quantity of materials.

Labor Efficiency Variance

A measure used to assess the difference between the actual hours worked and the standard hours allotted to complete a task, multiplied by the standard hourly labor rate.

Variable Overhead

Refers to the indirect costs of operation that fluctuate with the level of production activity, such as utilities for manufacturing facilities.

Labor Rate Variance

The difference between the actual cost of labor and the expected (or standard) cost, indicating efficiency or inefficiency in labor usage.