Week11/GS1MC/Hydrosphere Quiz

What is the hydrosphere?

• The solid outer layer of Earth

• The layer of gases surrounding Earth

• The region of Earth where life exists

• The combined mass of water found on Earth

What percentage of Earth's water is freshwater?

• 2.5%

• 3%

• 97%

• 50%

Which of the following contains most of Earth's freshwater?

• Oceans

• Glaciers

• Lakes

• Rivers

What is the process called when liquid water changes to water vapor?

• Condensation

• Transpiration

• Precipitation

• Evaporation

What is the average salinity of Earth's oceans?

• 35 grams per kilogram

• 25 grams per kilogram

• 1.5 grams per kilogram

• 45 grams per kilogram

What is the term for the time a water molecule stays in a reservoir?

• Retention time

• Residence time

• Storage time

• Cycle time

Which of the following is a major source of freshwater?

• Atmospheric moisture

• Saltwater lakes

• Desalination plants

• Glaciers

What is the primary driver of the water cycle?

• Wind

• Solar energy

• Tidal forces

• Geothermal energy

What is brackish water?

• Water that is frozen

• Water with high salinity

• Water with low salinity

• A mixture of freshwater and seawater

How long does it take for deep groundwater to recharge?

• 10,000 years

• 250 years

• 100 years

• 2,500 years