Optical fibers are made from hair-thin threads of
A) marble.
B) glass.
C) asbestos.
D) ceramics.
Correct Answer:
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Q33: Which one of the following materials is
Q34: Pottery is made nonporous by
A)heating.
B)firing.
C)glazing.
D)painting.
Q35: Assume that you have two compounds,A and
Q36: As opposed to most solids,when glass is
Q37: Which of the following is a noncrystalline
Q39: Which material is characterized by a two-dimensional
Q40: The properties of glass are modified by
Q41: Probably the first metal to be freed
Q42: The name of an ore from which
Q43: Steel is formed by
A)heating iron at high
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