Air Pollution Has Only Become an Important Urban Problem in the Last

Q23: Assume you live in an urban setting

Q24: Part of the reason that precipitation is

Q25: Many reactions that produce secondary pollutants are

Q26: The Environmental Protection Agency was created in

Q27: In his 1880 speech, what idea did

Q29: Exposure to this primary pollutant is associated

Q30: Ozone:<br>A) is a result of photochemical reactions

Q31: The most prominent sources of this colorless,

Q32: _are usually the most obvious form of

Q33: There are no natural sources of air