Question

Sudden overflow of a large volume of water off the riverbank is termed as ______.
(A) Flood
(B) Tsunami
(C) Cyclone
(D) Earthquake

Answer 1

Hint: A flood is a flood of water on ordinarily dry ground. This is most regularly because of a flooding waterway, a dam break, snowmelt, or hefty precipitation. Less usually happening are tidal waves, storm floods.

Complete Solution:
 The most dangerous flooding was in 1931 in China and murdered somewhere in the range of 2,000,000 and 4,000,000 people.The Kerala flood in India was another flood that has demolished individuals' homes. During a flood, individuals attempt to move themselves and their most valuable possessions to higher ground rapidly. The way toward leaving homes looking for a protected spot is brought flood evacuation.Rainfall over an all-encompassing period and an all-encompassing territory can make significant waterways flood their banks. The water can cover tremendous regions. Downstream regions might be influenced, in any event, when they didn't get a lot of downpour themselves. High measures of water streaming in streams regularly prompts flooding, and flooding is one of the more normal kinds of cataclysmic events. A flood results when a stream runs out of its limits and lowers encompassing areas. Flooding is generally caused when a volume of water inside a water body, for example, a lake, floods outside it. In some cases if a dam breaks, it out of nowhere delivers a lot of water. The outcome is that a portion of the water goes to land, and 'floods' the region. Numerous streams are in a channel, between waterway banks.

Option A is the correct answer

Note:
When the discharge of a river increases, the channel may become completely full. Any discharge above this level will result in the river overflowing its banks and causing a flood. The stage at which the river will overflow its banks is called bankfull stage or flood stage.