A "Mystery" in Our Understanding of Plate Tectonics Has Been

question 25

Multiple Choice

A "mystery" in our understanding of plate tectonics has been, until recently, the nature of the power source capable of moving the plates and the continents embedded within them. Recent evidence indicates the power source to be ____.

• A)the readjustment of the surface to continual shrinking of the whole Earth
• B)convection currents within Earth's mantle is moving the plates
• C)the action of ocean currents is dragging along the seafloor, causing the seafloor and the continents to move
• D)the continual vibration from earthquakes and volcanoes slowly moves the continents equator-ward under the influence of centrifugal force

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Definitions:

Administrative Department

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Catering Department

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Restaurant

A business establishment that prepares and serves meals, snacks, and beverages to customers.

Departmental Gross Profit

The difference between sales and the cost of goods sold for a specific department, highlighting its profitability.