Floods

Question 1

deforestation

Answer 1

less interception, increase rate of water hits ground at harder rate, more run off

Question 2

urbanisation

Answer 2

more run off (impermeable), more water movement, less vegetation (less interception stored)

Question 3

farming

Answer 3

plough slops, water channel, less interception storage

Question 4

dam + reservoir

Answer 4

barrier controlling river flow, hydroelectric, effective, water, agriculture, public, dislocation, expensive, biodiversity

Question 5

channel straightening

Answer 5

artificial channel to increase water flow, direct transport, utilisation, short term, biodiversity

Question 6

embankment

Answer 6

artificially raise banks, effects public, effective

Question 7

flood relief channel

Answer 7

back up channel, decreases risk, reliable, downstream, disruptive

Question 8

river restoration

Answer 8

remove hard engineering to allow river to return to its natural course, wetland biodiversity, cheap

Question 9

early warning system

Answer 9

preparation and warning, all media

Question 10

flood p[lain zoning

Answer 10

used to guide buildings and asses risks

Question 11

afforestation

Answer 11

moisture taken out of soil, prevents soil erosion, passage for rain to fall into, interception, evaporation

Question 12

jubilee Reliefe

Answer 12

11km, 110 mill, 180 capacity, parallel north Thames, weir gates open divert water into channel, maidenhead to Windsor, increase tourism, protect 2000 households, decrease M4 floods