Isolate and Discuss the Rhetorical Devices That Appear in the Following

Isolate and discuss the rhetorical devices that appear in the following passage:
As if they alone were concerned with clean air and pure water, these self-anointed environmentalists question whether there will be nitrate pollution from the new subdivision and whether Madrone Creek can accommodate storm runoff from the development. Their no-growth ideas are familiar to everyone in the community.