Which did the early river valley civilizations have in common? a. the nearby rivers were good for farming but made trade difficult. b. they built cities along rivers that rarely flooded. c. their rivers provided defensive barriers against invasion. d. their rivers meant that they could irrigate their crops.

Apurging of emotions, specially pity and fear

The communists triumphed over forces because of a well-disciplined fighting force, a single - minded sense of zeal , and strong convictions.

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.