Which of these was NOT a contribution of ancient China? a. silk

b. representative democracy

c. civil service exam

d. porcelain

Why was the united nations established

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.

What happened to hudsons voyage east across the top of russia ?