Question

Why are flood plains very fertile?

Answer 1

Hint: You have to give the reason of the statement stating why it is correct and what were the measures taken and also state what do you mean about the flood plains. Generate alternative answers then evaluate and select an alternative after this implementation and follow upon the solution.

Complete answer: A floodplain is generally a flat area of land next to a river or stream. The plain stretches from the banks of the river to the outer edges of the valley. It consists of two parts. First is the main channel of the river itself which is called the floodway.
When it floods, it deposits a layer of fine soil with some salts, nutrient-rich silt, rich mineral salts, sediment, and distributes it across a wide area. These sediments (which means matter that settles to the bottom of a liquid) make the soil very much fertile and lead to the formation of a very flat fertile floodplain. In order to increase pressure for land we built floodplains which resulted in developers seeking permission in areas considered 'at risk' of flooding. It has been argued that the combination of high housing demand and flood protection subsidised by the government actually encourages house building on floodplains. Basically the sediments make the soil much fertile and lead to the formation of a very flat fertile floodplain.

Note: The plains ( means a large area of flat land with few trees) which are formed by the deposition of fine soil and other material called sediments on the river banks is known as Floodplains. As the soil and sediments are brought by flood water, they become very fertile.