Which two latin american nations continue to have a dictatorship style of government?

Space is not completely empty. there are small particles in space. what happens when these particles come together?

Which of the following world and national events led to a new view of people with disabilities in the us:     a.  world war i and ii veterans with disabilities returned home after the wars.b.  john f. kennedy was elected president and had a sister with a disability.c.  the civil rights and feminist movements.d.  all of the above.

How does the existence of a site like catus hill demonstrate the challenge that archaeologist face when making theories?