Understanding the Hydrosphere: Earth's Water Realm

The video explains the hydrosphere, which includes all forms of Earth's water. It covers the distribution of saltwater and freshwater, highlighting that 70% of Earth is covered by water, with 97% being saltwater in oceans. Freshwater sources include precipitation, rivers, lakes, and groundwater. Glaciers, primarily in Antarctica and Greenland, are significant freshwater reserves. The video concludes with a review and quiz questions to reinforce learning.

What percentage of Earth's surface is covered by water?

• 70%

• 90%

• 50%

• 20%

What is the primary component of the hydrosphere?

• Vapor

• Ice

• Freshwater

• Saltwater

Which of the following is a source of freshwater beneath the Earth's surface?

• Groundwater

• Lake

• River

• Spring

What is the term for large, slow-moving ice formations?

• None of the above

• Ice shelf

• Ice flow

• Glaciers

Where is the majority of Earth's glaciers located?

• Antarctica

• Australia

• Africa

• South America