Which of the following best describes an advantage of cooperation between maya cities?
trade allowed access to needed resources.
travel along shared rivers was limited.
rivalry between city states was prevented.
shared knowledge brought advances in medicine,

In what two ways were the tang and song dynasties of china similar? they jointly built the grand canal. they were economically strong. they had weak military forces. they ruled for about 300 years. they discouraged buddhist ideas.

Arguments supporting and opposing the supreme court decision citizens united v. federal election commission identify two reasons why some supporters of the decision consider it a victory for free speech.

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?