Water Supply

How much water does the average family of four use in one year?

• 90,000 litres

• 120,000 litres

• 180,000 litres

• 240,000 litres

In areas where it is difficult to get water, how much water do many people have to make do with per day?

• A few litres

• Ten litres

• Twenty litres

• Fifty litres

Where does the water we use originally come from?

• Streams

• Wells

• Rain or snow

• Seawater

How is freshwater obtained from seawater?

• By filtering

• By desalination

• By boiling

• By distillation

How is water stored by building dams?

• By creating artificial lakes

• By diverting rivers

• By pumping from wells

• By collecting rainwater

What is the process called to clean and make water safe to drink?

• Desalination

• Distillation

• Filtration

• Chlorination

What is added to the water to kill harmful germs?

• Fluoride

• Chlorine

• Salt

• Sewage

What is the process called to make water safe to drink?

• Desalination

• Distilation

• Filtration

• Chlorination

What is the purpose of adding chlorine to water?

• To remove impurities

• To improve taste

• To kill harmful germs

• To increase acidity

How is freshwater obtained from seawater?

• By filtering

• By desalination

• By boiling

• By distillation