The Three Gorges Dam on the Yangtze River in China was completed in 2006. Which of the following is a disadvantage of using dams for flood management?

Q: How do I try a free CIE Geography question?

Just tap any of the four options on this page — no signup, no card, nothing to install. You'll see the correct answer and a full mark-scheme-style explanation within a second. Each visit shows a fresh randomly-picked question from the live CIE IGCSE Geography bank, so you can keep refreshing to try different ones before deciding whether to create a free account for daily access.

Q: Is Kramizo really free for CIE Geography students?

Yes — completely free. Every student gets 45 questions a day on the free plan, across any board and any subject, with no card required and no trial countdown. Kramizo's optional Pro plan removes the daily cap and adds analytics, but the free plan is genuinely free forever. We make money from the small percentage of students who choose to upgrade — not from selling data or ads.

Q: Are the Geography questions aligned to the CIE IGCSE syllabus?

Every question is written against the published CIE IGCSE Geography syllabus and reviewed for accuracy before being added to the bank. We match the command words (state, describe, explain, evaluate), mark allocations, and difficulty tier you'll see on real CIE past papers. Explanations are written in the style of official examiner mark schemes so students learn exactly what marks are being awarded for.

Question

The Three Gorges Dam on the Yangtze River in China was completed in 2006. Which of the following is a disadvantage of using dams for flood management?

Accepted Answer

Sediment is trapped behind the dam reducing downstream fertility — Award 1 mark for identifying sediment trapping as a key disadvantage. Rivers naturally deposit nutrient-rich sediment on floodplains; dams prevent this, reducing agricultural productivity downstream. A is incorrect — dams do store water for irrigation. C is incorrect — dams reduce flood risk downstream by controlling flow. D is incorrect — HEP generation does not significantly reduce total water flow.

Answer

Dams increase flood risk immediately downstream

Answer

Sediment is trapped behind the dam reducing downstream fertility

Answer

Dams cannot store water for irrigation

Answer

Hydroelectric power generation reduces water flow

One real Geography question.No signup. 30 seconds.

One real Geography question.
No signup. 30 seconds.