Which one of the following materials is longest lasting?
A) ceramics
B) concrete
C) glass
D) plastic
Correct Answer:
Verified
Q28: The color of quartz crystals is due
Q29: Clay consists mostly of
A)aluminum oxides.
B)aluminum hydroxides.
C)silicates.
D)carbonates.
Q30: Clays have widely varying compositions,but basically they
Q31: Which material is characterized by a double
Q32: Cement is a complex mixture of
A)calcium and
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
Q38: Optical fibers are made from hair-thin threads
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