The Dissolve tool creates multipart polygons. These are spatially separate polygons sharing the same attributes and stored as a single feature. Before selecting the required information using the Select tool, you’ll convert the multipart polygons to single-part polygons in order to extract information about each polygon.

To do so, expand the Features toolset located inside the Data Management Tools toolbox. Click and drag the Multipart To Singlepart tool into the ModelBuilder window. Right-click the Multipart To Singlepart tool and click Open.

Click the Input Features dropdown arrow and click the variable Dissolve Output. Leave the default for the location of the Output Feature Class parameter and type “singlepart_output” for the name. Click OK.

Click Auto Layout, then Full Extent to display all the model elements in their default positions in the display window. Right-click the singlepart_output derived data element and click Rename. Type “Singlepart Output” and click OK. Right-click the Singlepart Output derived data element and click Add To Display. Right-click the Multipart To Singlepart tool and click Run.

Examine the output layer in your ArcMap display and the layer’s attribute table. Click the Identify tool and click a polygon.

Notice that each polygon now contains its own information for climate zone, length, and area.