Smaller particles (1 mm) have an abrasive action, and larger particles (20 mm) have a polishing action
A) First statement is true, second statement is false.
B) First statement is false, second statement is true.
C) Both statements are true.
D) Both statements are false.
D
Explanation: D) All sizes of particles may be used for polishing and abrasion; however larger particles are better used for abrasion and smaller particles are better used for polishing.
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