What is a multipurpose river project? What are the different purposes fulfilled by the multipurpose River projects

Answer quickly! correct answers only! how did an agricultural surplus relate to expanded trade during the high middle ages? a)trade increased because surplus crops could be traded. b)trade decreased because surplus crops were needed to feed local populations. c)trade decreased because surplus crops led to an oversupply of grains that could not be sold. d)trade increased regionally but decreased globally because trade networks had shrunk.

With an american government question

What refers to the existence of more than one level of government in the country