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Why is considering river floods only as disasters an incomplete view?

Answer and explanation

Correct answer: Because floods also deposit alluvial soil

The direct answer is C: floods also deposit alluvial soil. Floods can be dangerous because fast water may damage homes, crops, roads and lives. However, a flood also spreads fine, nutrient-rich sediment called alluvium over nearby plains. This material can improve soil fertility and support agriculture after the water recedes. Therefore, judging every flood only as a disaster ignores its natural role and possible benefit; risks still need management, warnings and safe planning. Option A is wrong because floods do not always remove cities. Option B is wrong because floods cause major physical and environmental changes. Option C is correct because deposition of fertile silt is a recognised effect. Option D is wrong because a flood does not normally end the river. Exam cue: mention both hazard and fertile alluvial deposition.

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DrainageRiversFloods

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