Water on Earth Quiz

What are the two factors that make it possible for Earth to contain liquid water in abundance?

• The distance from the sun

• The atmosphere

• Both A and B

• None of the above

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

• 50%

• 60%

• 75%

• 90%

What is the freezing point of water at sea level?

• 0°C

• 32°F

• 100°C

• 212°F

What is the boiling point of water at sea level?

• 0°C

• 32°F

• 100°C

• 212°F

What is virtual water consumption?

• Water used directly

• Water needed to manufacture a product

• Water from rainfall

• Water from rivers

What is the main cause of water pollution in the urban sector?

• Industrial waste

• Organic matter

• Agricultural runoff

• Plastic waste

What is the process of making drinking water?

• Filtration

• Decantation

• Disinfection

• All of the above

What is the first step in the drinking water production process?

• Fine particle filtration

• Large particle filtration

• Disinfection

• Storage

What diseases can be caused by polluted water?

• Cholera

• Malaria

• Dengue

• All of the above