Answer:
Explanation:
The main difficulty of barter system is the lack of double coincidence of wants. In a barter system a person who wants to exchange his goods must find some person who is willing to exchange his commodity with his commodity. Hope that helps!!!
The astronomers provided a new way of looking at things through exploration. Their example was followed by others who soon began exploring, leading the world into the Renaissance.
I think the answer would be grass
The country located just north of the tip of africa is Spain