Acute danger to human life (i.e. death) exists, if the concentration of CO 2 in – OfficerPath

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MCQ Practice

Acute danger to human life (i.e. death) exists, if the concentration of CO 2 in atmospheric air exceeds __________ percent (by volume).

Subject: Chemical EngineeringTopic: Environmental Engineering In Ce

A

1

B

3

C

7

D

20

Correct Answer: D

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