Dynamic and Complex: The Global Water Cycle

What percentage of the Earth's total water is stored in the atmosphere?

• 0.001%

• 1%

• 10%

• 70%

Where is almost 70% of the Earth's freshwater stored?

• Atmosphere

• Oceans

• Ice caps, glaciers, and permanent snow

• Rivers

What is the process called when snow transforms directly from a solid to a gas?

• Precipitation

• Sublimation

• Condensation

• Evaporation

What determines whether precipitation falls as snow, rain, sleet, or hail?

• Air pressure

• Humidity

• Air temperature

• Wind speed

What is the term for water entering the soil through pores at the surface?

• Run-off

• Transpiration

• Condensation

• Infiltration

What is a spring in terms of groundwater?

• A place where groundwater discharges on the land surface

• A form of water storage in the atmosphere

• A type of precipitation

• A process of water turning into vapor

How long can water be stored in a lake?

• Permanently

• A few days to 100 years

• Only during the rainy season

• A few hours

What percentage of the Earth's water is stored in the oceans?

• 100%

• 98.5%

• 70%

• 50%

What is the process by which liquid water turns into water vapor?

• Evaporation

• Condensation

• Precipitation

• Sublimation

What is groundwater discharge?

• Water entering the soil

• Water exiting the land surface through a spring

• Water stored in lakes

• Water evaporating from plants