How Do Primary Air Pollutants Differ from Secondary Air Pollutants

question 62

Multiple Choice

How do primary air pollutants differ from secondary air pollutants?

• A)Primary air pollutants contain oxygen, while secondary pollutants do not.
• B)Primary air pollutants cause greater health impacts than secondary pollutants do.
• C)Primary air pollutants are released directly into the atmosphere, while secondary air pollutants are formed by chemical reactions in the atmosphere.
• D)Primary air pollutants are formed through photochemical reactions in sunlight, while secondary air pollutants are not.

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