ERASMUSWATERLITERACY

What is the approximate percentage of Earth's surface covered by water?

• 50%
• 71%
• 30%

What is the term for the process of removing salt and other impurities from seawater to make it suitable for drinking and irrigation?

• Desalination
• Salt extraction
• Desalting

What is the chemical formula for water?

• HO
• H3O
• H2O

Which of the following is the largest source of freshwater on Earth?

• Underground aquifers
• Rivers
• Glaciers and ice caps

What percentage of the human body is water, approximately?

• 40%
• 60%
• 75%

Which of the following is NOT a water-saving method?

• Taking shorter showers
• Using a hose to wash a car
• Using a watering can for plants

What is the recommended time for watering plants to minimize evaporation?

• Early in the morning or late in the evening
• At night
• During midday

What can you do to reduce water usage while washing dishes by hand?

• Wash dishes individually without soaking
• Fill one sink with wash water and the other with rinse water
• Use running water continuously

Which of the following is a method to collect and reuse rainwater?

• Installing a rain barrel or cistern
• Digging a trench
• 1. Leaving sprinklers running overnight

  
  

Which activity can help conserve water by reusing water from another source?

• Leaving the tap running while brushing teeth
• Using a sprinkler system for hours daily
• Collecting rainwater in a rain barrel