Fig. 1 illustrates a bend in the River Indus near Dera Ghazi Khan, based on a drone survey made before the flood season. Farmers have planted close to the o...
Question 1 Report
Fig. 1 illustrates a bend in the River Indus near Dera Ghazi Khan, based on a drone survey made before the flood season. Farmers have planted close to the outside bank because the alluvial soil is productive. The diagram helps them decide where bank protection is most important.
(a) Identify the bank labelled X. [1]
(b) Describe the process occurring at X. [1]
(c) Explain why floodplains beside the Indus are both economically valuable and hazardous. [3]
Answer Details
(a) Outer bank/river cliff/cut bank [1] (b) Erosion by faster-flowing water, undercutting the bank [1] (c) Any three: deposited alluvium is fertile for crops [1]; water is available for irrigation [1]; flat land aids farming and transport [1]; floods can destroy crops, homes and roads [1]; lateral erosion can remove farmland [1]; silt deposition may block channels/canals [1]. [3]
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