What was the first man-made fiber?
A) Nylon
B) Polyester
C) Acetate
D) Rayon
Correct Answer:
Verified
Q23: The presence of sheath cells on hair
Q24: Before the 20th century, all fibers were:
A)Natural.
B)Regenerated.
C)Synthetic.
D)Derived.
Q25: Which would involve determining the refractive index
Q26: When collecting fiber evidence, great care should
Q27: Which is NOT a synthetic fiber?
A)Rayon
B)Polyester
C)Acrylic
D)All of
Q29: The visible light microspectrophotometer is a convenient
Q30: Nuclear DNA typing can be most successfully
Q31: Which is made of natural polymers?
A)Plastic
B)Nylon
C)Starch
D)Paint
Q32: By far the most prevalent plant fiber
Q33: Which step in the examination of fibers
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