Water Resources on Earth

What percentage of Earth’s surface is covered by oceans?

• 50%

• 71%

• 80%

• 97%

How much of Earth’s total water is contained in oceans?

• 71%
  

• 50%
  

• 97%

• 68.7%

Which process in the water cycle involves water changing from liquid to vapor?

• Condensation

• Evaporation

• Precipitation

• Collection

Which freshwater resource is stored underground in aquifers?

• Rivers

• Groundwater

• Lakes

• Wetlands

What type of water resource includes marshes, swamps, and bogs?

• Wetlands

• Glaciers

• Streams

• • Ice caps

Desalination is the process of:

• Filtering rainwater

• Removing salt from seawater

• Purifying groundwater

• Melting ice for drinking water

Which of the following stores about 68.7% of Earth’s freshwater?

• Oceans

• Rivers and streams

• Glaciers and ice caps

• Lakes and ponds

Which is NOT an example of water conservation?

• Fixing leaks

• Using water-efficient appliances

• Leaving the tap running while brushing teeth

• Collecting rainwater

Oceans are a source of freshwater for most communities.

• True
• False

Rivers and streams help transport water from land to oceans.

• True
• False