Answer
More contemporary coins are not used due to their toxicity and corrosiveness. Silver and copper have antimicrobial properties; hence they are suitable to be used as coins.
Work Step by Step
As above
Microbiology: An Introduction, 11th Edition
by Tortora, Gerard J.; Funke, Berdell R.; Case, Christine L.
Published by
Benjamin Cummings
ISBN 10:
0321733606
ISBN 13:
978-0-32173-360-3
Chapter 7 - Figure 7.8 - Oligodynamic action of heavy metals - Question - Page 195: 1
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