Water Distribution Quiz

What percentage of Earth's water is saltwater?

• A) 97%

• B) 2%

• C) 1%

• D) 50%

What percentage of Earth's water is unavailable freshwater because it is frozen?

• A) 97%

• B) 2%

• C) 1%

• D) 50%

What percentage of Earth's water is available freshwater?

• A) 97%

• B) 2%

• C) 1%

• D) 50%

Which image represents saltwater?

• A) Bucket

• B) Pitcher

• C) Glass with straw

• D) Spoon

Which image represents glaciers/ice caps?

• A) Bucket

• B) Pitcher

• C) Glass with straw

• D) Spoon

Which image represents groundwater?

• A) Bucket

• B) Pitcher

• C) Glass with straw

• D) Spoon

Which image represents lakes/rivers?

• A) Bucket

• B) Pitcher

• C) Glass with straw

• D) Spoon

What are the primary components of sea salts found in ocean water?

• Chloride, sodium, sulfate

• Carbonate, magnesium, potassium

• Nitrate, phosphate, calcium

• Bromide, fluoride, iodide

How can salt be added to ocean water?

• By hydrothermal vents, rocks and minerals being dissolved by underwater volcanoes, and acidic rainwater

• By evaporation of ocean water and precipitation

• By human activities such as mining and agriculture

• By the melting of polar ice caps and glaciers

What is density defined as in the context of ocean science?

• The amount of light in a given space

• The amount of salt in water

• The amount of mass in a given space

• The depth of the ocean