Consider the following information:
A Geographic Information System or GIS is a computer system that allows you to map, model, query, and analyze large quantities of data within a single database according to their location. GIS gives you the power to: • create maps • integrate information • visualize scenarios • present powerful ideas, and • develop effective solutions GIS is a tool used by individuals and organizations, schools, governments, and businesses seeking innovative ways to solve their problems. GIS stores information about the world as a collection of layers that can be linked together by a common locational component such as latitude and longitude, a postal zip code, census tract name, or road name. These geographic references allow you to locate features on the earth’s surface for analysis of patterns and trends. Dozens of map layers can be arrayed to display information about transportation networks, hydrography, population characteristics, economic activity, and political jurisdictions.”
—Environmental Protection Agency, Mid-Atlantic Region

What kind of information would most likely be helpful to the Environmental Protection Agency?
 

Explanation

The Environmental Protection Agency (EPA) is concerned with the health of the environment, and hydrography is the study of bodies of water, so the EPA would most likely be interested in the hydrography of a region. Choice A is correct here.

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