Test Yourself
1- Which is larger:
a) Million or billion?
b) A part of million or a part...
Chemistry, 02.12.2020 16:00 darkghostmist
Test Yourself
1- Which is larger:
a) Million or billion?
b) A part of million or a part of billion?
2- Which is more harmful: concentration of a poisonous substance (lead) in
drinking water to be a part of a billion or a part of a million?
Answers: 1
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