water

Question 1

Name 3 reasons as to why there is an unequeal water world

Answer 1

-physical distribution

-gap between rising & diminishing supplies

-water avaliability gap

Question 2

physical distrubution

Answer 2

-mismatch between where water supplies are & where demand is

Question 3

gaps between rising demand & diminshing supplies

Answer 3

rising demand:
-population growth
-rising standards of living -> meat-rich diets -> ^ water, more bathing, cleaning
-economic growth -> ^ water for agri, indus

falling supplies:
-falling supply from groundwater aquifers -> due to irrigation

Question 4

water avaliability gap

Answer 4

pg.47

Question 5

Name 5 physical factors affecting water insecurity

Answer 5

climate - annual precipitation
the water is then moved and distributed by the drainage network

evaporation and evapotranspiration

discharge into the sea

saltwater encroachment at the coast

Question 6

Name 3 human causes of water insecurity

Answer 6

contamination of water by agricultural, industrial and domestic pollution

over-abstraction from rivers, lakes and aquifers and the acute need to replenish these dwindling stores

agriculture -> consumes 70% of water -> it depletes aquifers -> reducing river flow
-increases pesticide pollution as they seep into groundwater

industrialisation ->

increasing population & urbnaisation -> demand for water is rising, causing local pressure on avalibiulity of freshwaterbv

Question 7

asia and the pacific

Answer 7

-crtical health problems -> a third of the population lacks access to safe drinking water

-water pollution -> bacterial waste = 10 times greater than recommended levels

-overuse: agriculture uses 90%
-aquifer depletion
-raw sewage is dumped into ganges each day

Question 8

europe/ central asia

Answer 8

-declining water wuality in countries with groundwater pollution

-increasing water consumption