Answer:
C. He studied all sorts of natrue, streams to trees.
Answer:
b. A reliable food production and distribution system
Explanation:
The Tang and Song Empires were successful at creating increased food production. Irrigation systems were responsible for more growing areas and particularly helped produced more rice. The empires also manipulated the landscape to create more land to farm. Terrace systems within the land also increased the amount of land that could be farmed at any one time. Cotton, tea, and rice became the most produced crops making money for the empires.
With a hit of the “hammer” on the piece of wood.
Keeping Communism from spreading beyond the countries already under it's influence
United States involvement in the Boxer Rebellion would have contradicted the ideals George Washington laid out in his farewell address. It also would have violated the Monroe Doctrine by becoming involved in Europe's subject matters.