EVS (World Water Day)

When is World Water Day celebrated?

• 22 April

• 23 March

• 23 April

• 22 March

How much water does your body need every day?

• About 5 litres

• About 2 litres

• About 1 litre

Scientists think that the water on Mars

• is in the form of ice

• is in big rivers

• is in clouds

Identify the name of the longest river in the world?

• Yangtze

• Mississippi

• Nile

• Kaveri

By how much has Lake Chad shrunk since the 1960s?

• 70%

• 25%

• 90%

• 75%

There are roughly 7.8 billion people in the world today. How many people do not have access to clean water?

• 2.2 billion

• 3 billion

• 4 billion

• 3.5 billion

What percentage of schools around the world lack handwashing facilities with water and soap?

• 32%

• 40%

• 43%

• 39%

What does screening do?

• Traps and removes large debris from water

• Traps out moths and insects from entering water

• Removes larvae from water

What is turbidity?

• How cloudy the water is

• How salty the water is

• How soft the water is

• How sweet the water is

Which of these chemicals or germs sometimes found in drinking water is harmful?

• Bromate

• Giardia

• Nitrate

• All of the above