One of the major problems associated with the production of glass is
A) the amount of energy required.
B) the amount of sand required.
C) the amount of limestone required.
D) the amount of sodium carbonate.
Correct Answer:
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Q22: Which of the following is NOT a
Q23: Which of the following problems is NOT
Q24: The two major components in cement are
A)clay
Q25: Great quantities of _ have been used
Q26: Cigarette smoke and asbestos fibers act in
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
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