<prompt> Translate the following text to SwahiliOur understanding of science, technology, and markets has improved since the Clean Air Act was passed in 1970.  <response>: Kama ilivyoelezwa hapo juu, Ujuzi wetu wa sayansi, teknolojia na masoko umeboresha tangu Sheria ya Hewa Safi ilipitishwa mnamo 1970. 