Rivers

Question 1

Formation of levees

Answer 1

Repeated flooding drags sediment from river bed with it but the heavier sediment is left on the river banks as the water does not have enough power to bring it back

Question 2

Soil moisture surplus

Answer 2

Precipitation exceeds evapotranspiration so extra water

Question 3

Soil moisture recharge

Answer 3

Replenishment of water stores used in summer when evapotranspiration exceeded precipitation

Question 4

Factors affecting river discharge

Answer 4

Relief of land, saturated ground, rock type, vegetation

Urbanisation, dams, deforestation

Question 5

Different types of load a river carries

Answer 5

Bed load, dissolved load, suspended load,

Question 6

Name some fluvial landforms

Answer 6

Waterfalls, potholes, braided rivers, meanders, oxbow lakes, levee, floodplains, deltas

Question 7

Cumbria 2009

Answer 7

Cocker mouth affected worst,1 dead, 500 forced into emergency shelter, 16 bridges and 25 roads destroyed cutting off people, river Eden burst

Question 8

Pakistan 2010

Answer 8

Indus River floods, 1,985 killed, 12 million people’s homes destroyed or flooded, 1/5 of Pakistan under water, 10,000 schools damaged

Question 9

Uganda youthful population

Answer 9

50% under 15, 3% over 65, 48 babies per 1000, 7 babies average per lifetime,

Question 10

One child policy

Answer 10

0.7% growth rate, 400 million births prevented,