Briefly Review the History of the Theory of Plate Tectonics

question 21

Essay

Briefly review the history of the theory of plate tectonics.What was Alfred Wegenerʹs role? What evidence did he present? Why was his theory NOT widely accepted initially? What new evidence led to its later acceptance?

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Definitions:

Mixed Cost

Expenses that have both fixed and variable components, changing with the level of activity but also containing a static element.

Margin Of Safety

The difference between actual or projected sales and the break-even point, indicating the amount of sales that can decline before a business incurs a loss.

Fixed Costs

Fixed costs are business expenses that remain constant regardless of the level of production or sales activity, such as rent and salaries.

Absorption Costing

A financial accounting technique that integrates all costs incurred from manufacturing, including direct materials, direct labor, along with both fixed and variable overhead costs, into the total cost of a product.