Our country needs more scientists who are willing to step out in the public __ 28 _____ and offer their opinions on important matters. We need more scientists who can explain what they are doing in language that is _ __29_ ____and understandable to the public. Those of us who are not scientists should also be prepared to support public engagement by scientists, and to __ _30_ ___scientific knowledge into our public communications. 28._______ 29. _______ 30._______ A) arena B) contextual C) convincing D) devoted E) digits F) hasten G) hypotheses H) impairing I) incorporate J) indefinite K) indulge L) inertia M) pride N) reaping O) warrant