Question

Write about river defences ​

Answer 1

Explanation:

River defences

In many countries, rivers are prone to floods and are often carefully managed. Defenses such as levees, bunds, reservoirs, and weirs are used to prevent rivers from bursting their banks.

Answer 2

Answer:

hey mate here is ur ans

Explanation:

River flooding is often typified by long durations and relatively high velocities. ... Some river flood defence schemes utilise land upstream to store floodwater to regulate the flow through constrictions – typically through towns and cities. The main options for river defences are: Permanent solid flood walls and banks

hope it help u.