Madison Does a Study to Find Out If Talking on a Cell

question 13

Multiple Choice

Madison does a study to find out if talking on a cell phone while driving increases drivers' ability to react quickly to unexpected events.In her study,the dependent variable is

• A) the car.
• B) the time to react.
• C) the cell phone.
• D) Madison.

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Definitions:

Caldera

A large, cauldron-like depression that forms following the eruption and collapse of a magma chamber beneath a volcano.

Platinum

A dense, malleable, ductile, and highly unreactive precious metal used in jewelry, automotive catalytic converters, and various industrial applications.

Mafic to Ultramafic Intrusions

The intrusion of magma rocks ranging from mafic (rich in magnesium and iron) to ultramafic (extremely rich in magnesium and iron) compositions, important in the formation of various ore deposits.

Veins

Mineral deposits that fill cracks in rocks, often distinguished by their different materials from the surrounding rock.