As One Proceeds Away from a Mid-Oceanic Ridge

question 41

Multiple Choice

As one proceeds away from a mid-oceanic ridge

• A) One finds that first the ridge is magnetically neutral, but then there is a polar magnetic field
• B) The oceanic crust becomes younger and younger
• C) The oceanic crust becomes older and older
• D) The ridge has a reversed magnetic field, which reflects its formation many thousands of years ago

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Definitions:

Perfectly Competitive Firm

A theoretical concept describing a company that operates in a market where no single producer or consumer has the market power to influence prices.

ATC

Average total cost (ATC) is the total cost of production divided by the quantity of output produced, representing the cost per unit of output.

Marginal Cost

The supplementary expense involved in creating an additional unit of a product or service.

Marginal Revenue

The extra revenue a company earns by selling an additional unit of a product or service.