GEOLOGY

EARTH SCIENCE

GROUNDWATER

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
during a flood water overflows and floods a plain
A
Floodplain
B
Groundwater
C
Porosity
D
Drainage basin
Explanation: 

Detailed explanation-1: -Floodplains are usually very fertile agricultural areas. Floods carry nutrient-rich silt and sediment, and distribute it across a wide area. floodplains are flat and often have relatively few boulders or other large obstacles that may prevent farming.

Detailed explanation-2: -During a flood, water levels and the rate the water is flowing can quickly change. Remain aware and monitor local radio and television outlets. Avoid flood waters at all costs and evacuate immediately when water starts to rise.

Detailed explanation-3: -Complete Answer: Most floodplains are formed by deposition on the inside of river meanders and by overflow. Wherever the river meanders, the flowing water erosions the river bank on the outer side of the meander, while the sediments are simultaneously deposited in a point bar on the inside of the meander.

Detailed explanation-4: -Flood plains are formed when a meander erodes side ways as it travels down stream. when a river breaks it’s banks, it leaves behind layers of alluvium (silt) These are gradually build up to create the floor of the plain.

There is 1 question to complete.