Scientists Have Concluded That Increasing Levels of _________ Were Causing

question 51

Multiple Choice

Scientists have concluded that increasing levels of _________ were causing the depletion of the ozone layer.

• A) methane
• B) smog
• C) particulates
• D) CFCs
• E) O₃

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Definitions:

Assignable Variation

Variability in a process that can be traced to specific causes, as opposed to random variation.