Following the american civil war, northern cities saw an increase in population in part to a) an increase in asian immigration. b) soldiers returning home from europe. c) the flight of former slaves from the south. d) the migration of former confederate soldiers

President of the united states has scheduled a cabinet meeting today to discuss energy policy with specific focus on pollution and global warming. given what you know of the executive branch, which group of attendees would the president most likely expect to provide up-to-date information and expert insight during this meeting?