What could happen as a result of the effects of the opportunity cost on the left?

Who is the speaker in this excerpt from book 13 of homer’s odyssey, and what inference can you make from the tone?

97 points what types of changes have been made in the united states to protect people from earthquakes? a. communities are no longer located along fault lines. b. building codes ensure that structures can withstand shaking. c. warnings go off when an earthquake is expected, and people evacuate the area. d. barriers have been built to prevent flooding by a tsunami.

What are policymakers trying to do by using the media to deliver specific messages to citizens?