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What is the main ingredient in ordinary glass?


A) Lime (CaO)
B) Soda (NaCO)
C) Sand
D) Metal oxides

E) A) and D)
F) None of the above

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The only way to individualize glass fragments at a crime scene to a single source is to assemble the fragments and physically fit them together like a jigsaw puzzle.

A) True
B) False

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Weight is a constant property of matter that reflects the amount of material present.

A) True
B) False

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The weight 264.45 grams can be correctly expressed as:


A) 26,445 decigrams.
B) 0.26445 kilograms.
C) 26.445 centigrams.
D) None of the above

E) A) and B)
F) None of the above

Correct Answer

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A fracture always terminates at an existing line of fracture.

A) True
B) False

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________ is the bending of a light wave as it passes from one medium to another.

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