Answer:The basic government and society in Europe during the middle ages was based around the feudal system. Small communities were formed around the local lord and the manor. The lord owned the land and everything in it. He would keep the peasants safe in return for their service.
Explanation:
Answer: NASA was created as a response to the soviets sputnike 1, and is not similar to any way to NACA just wantedto mention that.
Answer:
Technological innovations increased agricultural yields.
Explanation:
The Chinese economy in the period 1200-1450 increased due to higher production of agricultural crops with the use of new technologies. In the period of song dynasty, an early growing rice cultivar was produced which can be grown multiple times in a year. Due to multiple harvest, food was available in large amount for the people so we can say that innovations increase the yield of crops.
The answer is B I know it
If its wrong I can say nice try to myself