Author Question: Infrared luminescence is used to do what? a. Detect whether two different inks were used in the ... (Read 145 times)

Mollykgkg

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Infrared luminescence is used to do what?
 
  a. Detect whether two different inks were used in the writing of a document
  b. Reveal writing that has been erased
  c. Prepare ink for thin-layer chromatography
  d. Both a and b

Question 2

The writing characteristics of a person may be altered by whether:
 
  a. paper is ruled or unruled.
  b. pencil, ballpoint, or fountain pen is used.
  c. the author sits or stands while writing.
  d. All of the above


Carissamariew

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Answer to Question 1

Answer: d

Answer to Question 2

Answer: d



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