Author Question: Infrared luminescence is used to do what? a. Detect whether two different inks were used in the ... (Read 143 times)

Mollykgkg

  • Hero Member
  • *****
  • Posts: 529
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

  • Sr. Member
  • ****
  • Posts: 359
Answer to Question 1

Answer: d

Answer to Question 2

Answer: d



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.

Did you know?

Hip fractures are the most serious consequences of osteoporosis. The incidence of hip fractures increases with each decade among patients in their 60s to patients in their 90s for both women and men of all populations. Men and women older than 80 years of age show the highest incidence of hip fractures.

Did you know?

Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.

Did you know?

A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.

Did you know?

The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.

For a complete list of videos, visit our video library