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Author Question: Which of the following stains are only exogenous in origin? a. Intrinsic b. Extrinsic c. ... (Read 46 times)

Frost2351

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on: Jun 25, 2018
Which of the following stains are only exogenous in origin?
 a. Intrinsic
  b. Extrinsic
  c. Endogenous
  d. Both a and c

Question 2

Fine abrasives are called powders or flours and are graded F, FF, and FFF for increasing fineness; these characteristics best describe which of the following abrasives?
 a. Grit or grade
  b. Particle size
  c. Particle hardness
  d. Particle strength


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ryrychapman11

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Reply #1 on: Jun 25, 2018
Answer to Question 1

b
RATIONALE: Extrinsic stains are exogenous in origin.

Answer to Question 2

a
RATIONALE: Fine abrasives are called powders or flours and are graded F, FF, and FFF for increasing fineness; these characteristics best describe grit or grade.


Frost2351

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Reply 2 on: Jun 25, 2018
Gracias!

debra928

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Reply 3 on: Yesterday
Excellent

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