Worksheets3.2 Impact of changing trends in resource consumption-Water
Total questions: 27
Worksheet time: 15mins
The WEF nexus places great emphasis on the interconnected nature of the three key resources (water, energy and food). Those interconnections have a starting place and that is ...
Energy
Food
Water
None of the above
Water is available in a known fixed amount and we cannot increase that amount.
True
False
All renewable energies rely either directly or indirectly on water.
True
False
The production of solar panels and wind turbines do not require any amount of water.
True
False
Food and energy production do impact water supply but not the amount of water on the planet.
True
False
Which of the following statements does NOT relate to water security. A water-secure world:
is central to improving the health, welfare and productivity of populations
harnesses the productive potential of water (e.g. hydropower) and minimises the destructive forces (e.g. flood control)
is not relevant to reduce the global disease burden (many diseases are linked to dirty water)
reduces poverty and improves quality of life and living standards for the most vulnerable people in the world.
_______ of the world’s population does not have access to improved sanitation
10%
30%
50%
70%
Lack of sanitation at school is a problem in most countries in much of (a)
In sub-Saharan Africa _______ of the children under 5 do not have access to clean drinking water.
20%
40%
60%
80%
Probably the most obvious cause of water insecurity is the gap between _________ _____ ________, usually in an area where the natural supply is inadequate to meet the needs of a growing population.
rich and poor
evaporation and precipitation
positive and negatives feedback loops
supply and demand
Growing populations put direct strain on water resources through the need for domestic supply but also indirect strain through the need for more food and more energy.
True
False
Increase in demand for water is only linked to increased population, and it is not linked to greater affluence and changing lifestyles.
True
False
Climate change is causing a shift in water availability and areas that previously had sufficient water now face ____________.
droughts
rainstorms
floods
earthquakes
In areas of the world where there is a poor natural supply (physical scarcity) and poor infrastructure (economic scarcity) poverty deprives many people of water security. Water is too expensive to buy so they have limited access to clean, safe water.
True
False
The radar graph shows the baseline water stress by sector for three countries. Which country, A or B, is Brazil?
A
B
Which of the following is NOT a cause of poor water security?
Increased water pollution.
Global climate change.
Supply exceeds demand as population increases.
Conflict and civil unrest.
Which of the following is NOT a strategy to improve water security:
Increase the supply: desalination, water-transfer schemes, grey-water recycling and fog harvesting.
Increase the demand: privatising access to water services and improving sanitation and water access productivity.
Increase the storage: reservoirs, artificial recharge of aquifers, rainfall-harvesting schemes and artificial glaciers.
Decrease the demand: water conservation, raising awareness.
Desalination is an energy-intensive process and therefore usually expensive.
True
False
The most common method of desalination is reverse _______________ .
osmosis
retrieval
proxy
sweep
These schemes use pipe or canals to move water from river basins where there is a surplus to ones where there is a water deficit. These refer to:
Desalination schemes
Grey water schemes
Water-transfer schemes
Fog Harvesting
Grey water is used water that is clean enough to be used again as opposed to black water, which is not. Grey water is from baths, showers, wash basins and washing machines whereas black water is from toilets.
True
False
These can be either natural or artificially created lakes, used to collect and store water.
Artificial lakes
Rainfall-harvesting
Artificial recharge
Reservoirs
Reservoirs have additional benefits because they can be used to control flooding, control water quality and provide space for fisheries and recreational facilities, but cannot be used to generate hydropower.
True
False
This picture illustrates which type of water storage-increase scheme.
Artificial lakes
Rainfall-harvesting
Artificial recharge
Reservoirs
Name the region of the world with the largest proportion of water supplied by desalination plants.
(a)
To decrease demand, water conservation often requires a change in attitude. Which of the following does NOT refer to such attitude.
Increasing water efficiency through improved technology and processes use
Introducing legislation relaxing the standards on water pollution.
Introduction of legislation and policies that incorporate efficient use of water
Public awareness campaigns
The figure shows one of the ways in which water supply can be increased.
An appropriate title for the figure would be ......
Increasing water supply through desalination.
Increasing water supply through artificial recharge.
Increasing water supply through grey-water recycling.
None of these are the correct title for the figure.
