global demands for water

Question 1

why do global demands for water change

Answer 1

1) increased population
2) increase per-capita use from increased affluence
3) increased irrigation
4) industrialisation

Question 2

how does increased population change demands for water

Answer 2

population grows when birth rates are higher than death rates or because immigration is greater than emigration which means more individuals need water in one area

Question 3

how does increased per capita use change water demands

Answer 3

1) poorer countries have no easy access to water so domestic water use is limited to the amount that can be carried
2) s piped water becomes available water can be used for more purposes such as washing machines and showers ect so more water is used per individual

Question 4

how does industrialisation change water demand

Answer 4

different industries have different water requirements

heavy industries use more than light

Question 5

how does increased irrigation affect water demand

Answer 5

as commercial agriculture ex[ands the increased income allows for irrigation schemes as water is pumper from aquifers and rivers

Question 6

what percentage of total water use is used in

1) agriculture-
2) industry
3) domestic

Answer 6

1) 70%
2) 22%
3) 8%