1) Why did Shi Huangdi build a wall in northern China?
to keep invaders out 
2) How was China governed in its early history?
by multiple dynasties
3) What are some achievements China made in its early history?
they built the great wall,
4) When did Europeans begin exploration of China?13th century
5) How was Europe able to gain access to Chinese markets in the 19th century?
china had weak military and inefficient government
6) Which political group has held considerable power in China for the last 50 years?
communists 
7) What did the Communist party want for China's economy?
they wanted to modernize the economy.
8) Where does China get the resources that fuel the industrial economy?
shang hai
9) What item is especially popular as an export to the U.S.
tiles
10) Name two important Chinese inventions?
paper gun powder
11) What are the predominant religions of China?
budhism, teoism, configurisim
12) What is China's population?
about 1.34 billion