Answer;
D. The Nile deposited fertile soil.
Explanation;
The Greek historian Herodotus called Egypt the "gift of the Nile", since the kingdom owed its survival to the annual flooding of the Nile and the resulting depositing of fertile silt.
The Nile River flows into the Mediterranean Sea, and there is a delta at the mouth. The river provided the people with means for transport, help with irrigation for farming, some food such as fish, and even created fertile soil for growing crops.
