Understanding the Water Cycle

What percentage of Earth's water is saltwater?

• 10%

• 75%

• 50%

• 96.5%

What is the process called when water evaporates from plants?

• Precipitation

• Evaporation

• Transpiration

• Condensation

How long does a water molecule typically stay in the atmosphere?

• 20 days

• 10 days

• 5 days

• 1 day

Which of the following is NOT a way water is stored on Earth?

• In oceans

• In the atmosphere

• In outer space

• In magma

What is the total volume of water on Earth?

• 500 million cubic miles

• 1 billion cubic miles

• 100 million cubic miles

• 332.5 million cubic miles

What natural event can bring water from deep in the Earth to the surface?

• Volcanic eruption

• Hurricane

• Earthquake

• Tornado

What is the term for water turning into vapor and rising into the atmosphere?

• Precipitation

• Condensation

• Evaporation

• Transpiration

How much water can a large oak tree transpire in a year?

• 10,000 gallons

• 20,000 gallons

• 40,000 gallons

• 30,000 gallons