Among three of passages I choose “Smong”.First of all this theme widespread pollution problem entire of world. And comparing with others two passages most important and troubling today’s unsolved problem. From this text I have learnt a lot of terms. I’ve heart these terms before, but never paid attention .For example: Nitric oxide, nitrogen dioxide. And also I’ve known from passage about the process of air’s pollution, about formation of acid rain. In passage mentioned one of the causes of irritation of eyes is toxic substance (ozone).In general, easy to read, undertandable .Contained useful and interesting information.
