water

Question 1

what is a water surplus

Answer 1

When supply of water exceeds demand of water

Question 2

What is a water deficit?

Answer 2

when demand exceeds supply

Question 3

what is water stress

Answer 3

water stress occurs when there is not enough water to meet the demand

Question 4

What are the factors that increase demand for water?

Answer 4

1. high population
2. irrigation in farming
3. increase in electricity demand means more is used in power stations
4. household appliances use a lot of water - dishwasher

Question 5

give 3 causes of the global water crisis

Answer 5

1. We rely on 1% of the global water.
2. Water systems are normally damaged and broken, so a lot of water is wasted and governments don’t fix it because water isn’t worth much. 
3. desalinating water requires energy

Question 6

what are the negatives of using water ttransfer to move water from an area with a surplus to an area with deficit

Answer 6

lots of engineering is required
It can cost a lot of money
If water is pumped long distances, it can release greenhouse gases
It can harm wildlife and the land

Question 7

how can we save water

Answer 7

Don’t waste water
Recycle water
Put water metres in your home
By domestic appliances that use less water

Question 8

how are wealth and water use related?

Answer 8

As wealth increases the water use increases

Question 9

why do richer countries use more water.

Answer 9

People in wealthier countries have higher living standards and therefore have more appliances that use a lot of water
People in wealthier countries also usually eat more food so more water is used up in the process of making it
Wealthy countries can afford to import water from other areas