Groundwater Awareness

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Questions and Answers

What percentage of Earth's liquid freshwater is made up of groundwater?

Most of Earth's liquid freshwater is made up of groundwater.

How does water get underground?

Water gets underground when it precipitates, like with rain or snow, and the ground soaks up the falling water.

What type of soil is good at absorbing groundwater?

Sand is good at absorbing groundwater.

What is the region called where the soil is not saturated with water?

The region where the soil is not saturated with water is called the unsaturated zone. Signup and view all the answers

Where is much of the world's groundwater stored?

Much of the world's groundwater is stored in underground water reservoirs called aquifers. Signup and view all the answers

What is an aquifer?

An aquifer is a large underground layer of rock or sediment that holds water. Signup and view all the answers

What is the Ogallala Aquifer?

The Ogallala Aquifer is one of the world's largest aquifers, located in the Great Plains of the U.S. Signup and view all the answers

How do geysers form?

Geysers form when underground water is heated by magma, causing pressure to build up and escape at the surface. Signup and view all the answers

Why do natural ecosystems depend on groundwater?

Natural ecosystems depend on groundwater because it provides a source of freshwater for surface water systems, plants, and animals. Signup and view all the answers

What are sinkholes and how are they formed?

Sinkholes are funnel-shaped cavities in the ground that occur when groundwater is removed, causing the land to sink downward and fill the empty space. Signup and view all the answers