    Sentence 1: Plants:still.must abide by- state and.  federal air-pollution laws’, so. there will not hé.an  increase in.smog, the administration argues’,    Sentence 2: Plarits still must abide by'state and  ‘federal.air-pollution Jaws” ;,..so° there wan't  necessarily ‘bé -ariy |increase in pollution: the  administration argires :    