Geographic Information Systems (GIS) can be used by scientists to . find a geocache site study changes in an ecosystem using satellite imagery predict severe weather events up to a week ahead of time perform advanced statistical analyses that cannot be performed by hand determine fish population sizes using sonar

Study changes in an ecosystem using satellite imagery.

Explanation:

A geographic information system (GIS) is a system that is designed to gather, manage and analyze data. These systems are used by geographers, and it allows them to integrate many different types of data, particularly spatial data. Therefore, this system can be used in the development of maps, 3D scenes, and visualizations. Therefore, it would be a useful tool to have when studying changes in an ecosystem using satellite imagery.

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