Answer:
Barter
Explanation:
Barter system is a kind of trade system of exchange in which the participles involving in the transaction directly exchange the services or the goods for other services or goods without the usage of medium of the exchange such as money.
Marcel and Charles are involving in barter system in which former exchanges the boat with the car of the latter.
Answer:D
Explanation:
Opinions in later years shifted to a different point of view from the earlier cases.
So we keep on unserstanding social science if it became dead we would habe issues
Nationalism in many ways led to the world war 1. Europeans had fustrated a belive in the supermacy of their respective nations. Together with imperilism, nationlism contributed to a believe that a European war was neccessary.