Mathematics, 31.10.2019 00:31 ashliemallen

If the atmospheric carbon concentration was 280 parts per million in was the concentration in 2012?
a.)167 parts per million
b.)393 parts per million
c.)681 parts per million
d.)280 parts per million

Answers: 3

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More questions: Mathematics Another questions

If the atmospheric carbon concentration was 280 parts per million in was the concentration in 2012? a.)167 parts per million b.)393 parts per million c.)681 parts per million d.)280 parts per million

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Another question on Mathematics

If the atmospheric carbon concentration was 280 parts per million in was the concentration in 2012?
a.)167 parts per million
b.)393 parts per million
c.)681 parts per million
d.)280 parts per million