What is delta? Why are they fertile?
Answers
Answer:
Answer. Delta's are so fertile because sand from different lands brought by water. Delta is a landform that forms from deposition of sediment carried by a river as the flow leaves it's mouth and enters slower-moving or stagnant water.
Answer:
A river when approaches towards its last stage of its course before submerging into the seas and oceans becomes very slow. Due to the load of sediments the river is carrying and because of the flat land, it is forced to deposit the sediments near the mouth. The river starts breaking into number of small streams known distributaries. The network of distributaries form a triangular shaped feature called delta. These deltas are most fertile areas in the course of a river. The deposition of sediments in the deltas is a continuous process making these deltas the most fertile areas.