Throughout this test, write your answer on the form provided. Erasure marks may cause the grading machine to mark your answer wrong. INSTRUCTIONS: The following selections relate to distinguishing arguments from nonarguments and identifying conclusions. Select the best answer for each. Incandescent light bulbs eventually burn out because the high temperature of the filament causes tungsten atoms
to fly off and collect on the inside of the bulb's glass. This loss of tungsten is slowed, but not prevented, by introducing argon inside the bulb's envelope. As more and more atoms are lost, the filament disintegrates. When this happens, no electricity flows through the filament, and the bulb produces no light.
A) Argument; conclusion: Incandescent light bulbs eventually burn out.
B) Argument; conclusion: The high temperature of the filament ... the bulb's glass.
C) Argument; conclusion: The filament disintegrates.
D) Argument; conclusion: When this happens ... the bulb produces no light.
E) Nonargument.
E
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