Question

tecnno logies nave cnangea carin over time. geographers create maps using techn iques that involve computerized information systems. maps might show anything from wind patterns in both hemi sphere s to population changes in an urban center. information is shared with researchers in other fields. scientists who often work with geographers include logists, who study forces that geo phys psych

Explanation:

The sentence is about scientists who work with geographers and study forces. Physicists (from "phys" as a root) study forces in nature, so the correct prefix is "phys" to form "physicists".

Answer:

phys