What is a core role of remote sensing and GIS in environmental monitoring and decision making?

• A. GIS cannot handle temporal data.
• B. Remote sensing provides broad spatial data; GIS integrates layers to analyze patterns, model scenarios, and support planning.
• C. Remote sensing provides only historical data.
• D. GIS is used only for map printing.

Answer: (D)

Remote sensing provides broad, synoptic data about the Earth’s surface, capturing imagery over large areas and repeatedly over time. GIS then takes those data along with other layers (land use, soils, water, infrastructure, demographics) and integrates them so you can analyze spatial patterns, assess changes, run scenario models, and support planning decisions. This combination is powerful for environmental monitoring and decision making because you can see where conditions are changing, quantify trends, and test how different actions might impact outcomes. The other statements are incorrect because GIS can handle temporal data, remote sensing offers more than just historical data, and GIS is used for much more than printing maps.