Flood Plain MS June 2014 P11 Qn 3(a)

3 (a) 
(i) 1.6 to 1.8km (1 mark) [1] 

(ii) X = Oxbow lake Y = meander (2 × 1 mark) [2] 

(iii) Ideas such as: 
 flooding of track; 
 erosion of embankment/ track; 
 cost of maintenance; 
 disruption to services; 
 build a bridge; 
 rocks from river may be deposited and block the track; etc. 

(3 × 1 mark) [3] 

 (iv) Ideas such as: 
 lateral erosion/ or description; 
 deposition in channel/ on bed of river; 
 displacement of water; 
 flooding of river/ overflows bank; 
 carrying large amount of sediment; 
 slow moving/ stationary water/ friction; 
 deposition of sediment on flood plain/ deposition of alluvium; 
 build up of layers; etc. 

(4 × 1 mark) [4] 

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