The purpose of the Clean Air Act is 27 O A to provide a mech
     The purpose of the Clean Air Act is 27 O (A) to provide a mechanism for cleaning contaminated sites and to hold responsible parties accountable O (B) O (C) to institute point source controls and establish maximum pollutant levels (D) to provide a cradle-to-grave framework for managing hazardous waste, from generation to final disposal to restore and maintain the chemical, physical, and biological integrity of the nation\'s waters  
  
  Solution
(27) Answer:- (D) to provide a cradle to grave framework for managing hazardous waste from generation to final disposal.
(28) Answer:- (c ) 24 KN
(29) Answer:- (C ) mg/L in CaCO3

