What type of landform makes up most of the united states?

This was an order issued during the civil war by president lincoln ending slavery in the confederate states

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?

What explains the political difference among african americans politicians during reconstruction