Deserts Are Characterized by
A) an Absence of Vegetation
B) $\degree$

question 59

Multiple Choice

Deserts are characterized by

• A) An absence of vegetation
• B) Sand dunes, which cause plants to grow only with difficulty
• C) Low levels of measurable precipitation
• D) Their location at 30\(\degree\) latitude
• E) Sand or gravel

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Definitions:

Marginal Cost

The expenditure required to create one more unit of a product.

Producer Surplus

The difference between the amount that producers are willing and able to sell a product for and the actual amount they do sell it for.

Demand Curve

A visual plot that illustrates the connection between the cost of a product and the amount of it buyers are prepared and capable of buying at different price levels.