The Figure Shown Below Illustrates How,although Pines First Established Themselves

question 17

Multiple Choice

The figure shown below illustrates how,although pines first established themselves as the dominant tree in the Lake Michigan sand dune community,black oaks ultimately become the dominant species.What best explains the gradual reduction of the pine?

• A) Oaks trap sand, causing the dune to level out; pines can only survive in the low, protected areas between the dunes.
• B) Pine needles and the shade from existing pines improve the soil composition and moisture, allowing oaks to become established and preventing new pines from surviving.
• C) Pines replace the grasses, but this destabilizes the dune and increases the amount of moving sand. The loss of pines is not related to the presence of the oaks.
• D) Oak seeds were always present in the sand; they simply require more time to germinate.

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Definitions:

Direct Labor-Hours

The total number of hours worked by employees directly involved in the manufacturing process, used as a basis for assigning labor costs to products.

Machine-Hours

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Forming Department

A division within a manufacturing facility where raw materials begin their transformation into the final product, often through molding, shaping, or casting.

Finishing Department

A section within a manufacturing facility where products undergo final quality checks, enhancements, or packaging before being ready for sale.