what do you mean by River defences?.
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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.
palak5354:
i asked for river defences not flooding
pls read full parah
ok thank you
i am asking one more question check if you can answer it
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