Year 11 Recap on Water

What % of the earth is covered with water?

• 70 %

• 35 %

• 97 %

• 95 %

What % of water on the earth is contained in the oceans?

• 70 %

• 97 %

• 3 %

• 95 %

An area which receives little rainfall and has high rates of evaporation and transpiration is in ....

• Water surplus

• Water excess

• Water deficit

• Water disaster

When there is not enough water to meet needs, an area is in

• Water nightmare

• Water heaven

• Water Stress

• Water Disaster

What is the name of the Lake that supplies Las Vegas with 90% of its water supply?

• Lake Colorado

• Alton Water

• Lake Meadow

• Lake Mead

Which does Las Vegas not do to try and encourage residents to use water more efficiently ...

• Plant desert gardens

• Install aerators in shower heads

• De-chlorify swimming pools for drinking water.

• Low-flush toilets

What is desalination?

• The removal of salt from sea water.

• The removal of salt from cooking.

• The removal of waste products from sea water.

What are the 3 main problems with water supply in developing countries?

• Unsafe Water, Polluted Water and Low Annual Rainfall

• Dirty water, diseased water and smelly water.

• Leaky pipes, broken reservoirs, not enough money to invest in new infrastructure.

• Lack of rain, unpredictable rain, polluted water sources.

How many billion litres of water are lost every day in the UK due to leaky pipes?

• 1.7 billion

• 500 billion

• 3.28 billion

• 1.9 billion

What % of world population do not have access to safe water for drinking?

• 1%

• 10%

• 100%

• 50%