The normally arid land around the Nile River became saturated with water and nutrient-rich, river-born soil called silt. What caused this to happen? A. The people in the Fertile Crescent were able to grow a variety of crops. B. The people in the Fertile Crescent built effective irrigation systems. C. The Nile River flooded due to heavy rains. D. The Nile River dried out due to lack of rain.

The correct answer is C. The normally arid land around the Nile River became saturated with water and nutrient-rich, river-born soil called silt. This was caused because the Nile River flooded due to heavy rains.

Explanation:

The Nile is a river in Africa, and is generally regarded as the world's longest river, although some claim that the Amazon is longer.

The Nile often floods over its shores in the lowlands, making the banks a very fertile territory, which was already exploited in ancient Egypt. They sowed grain there, and when it rained, the sides were fertilized and it grew faster than usual. Most of Egypt's population, and all of Egypt's cities except those close to the coast, are located on the Nile north of Aswan, and almost all cultural and historical sites of ancient Egypt are on the banks of the Nile River. From Lake Victoria, the Nile flows through Uganda, South Sudan, Sudan and Egypt before spreading into the Nile Delta and ending in the Mediterranean.

C. The Nile River flooded due to heavy rains.

Explanation:

In ancient Egypt, their land area is made up of an area called Fertile Cresent which experience a maximium of 3 months rainfall.

The excessive rainfall leads to the overflow of the banks of the Nile River which on the long run causes the normally arid land around Nile River to become saturated with water and nutrient rich, river born soil which encourage agriculture.

Inorder to control the flooding during agriculture, canals are built to contain and direct the floodwaters of the Nile (irrigation system).