The main factor that led to the development of the four major river valley civilizations was its closeness to rivers, which was a food source, its flooding allowed for fertile soil, allowed easy transportation and cities near them were easier to defend.
The fact that fewer people had to dedicate to the production of food allowed some of them to develop other activities, such as the construction of building and cities, metal working, trade and social organization. This led to a social division, the ones that worked and the ones that ruled, creating intricate systems of governments and religions that ideologically sustained those in power.
It was better for the crops
Answer:
Marbury was named a justice of the peace of the District of Columbia. President Adams had signed the papers,but the secretary of state, John Marshall, somehow neglected to deliver the papers necessary to finalize the appointment.
The United Nations was created at the end of World War II as an international peacekeeping organization and a forum for resolving conflicts between nations. The UN replaced the ineffective League of Nations, which had failed to prevent the outbreak of the Second World War.
Answer:
Heavy rainfall can flood crops, which ruins agriculture.
