Why do countries develop economic system

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.

Why do you think kush in nubia is not as well-known as egypt? ( me with my exit ticket)

How can christianity affect the cultural landscape of a place?