Why dis the anasazi abandon their major pueblosa. the houses were too smallb. the houses were too difficult to keep cleanc. mounds were easier to buildd. severe droughts hit

"Most researchers feel that the Anasazi abandoned their pueblos because of drought and other changing conditions, although more recent research is beginning to show that other factors (violence, changing society, etc.) also played a role."

Therefore D

answer is b.

  it is always the best policy to have good communication and good relations between individuals and, specially, between leaders of the countries. for this purpose, among others, there is a common place, the united nations, where the representants can present his and learn about the other country's policies.