Question

the raised lines of your fingerprints are called __ and the valleys are called __.
○ tents, plains ○ furrows, ridges
○ ridges, furrows ○ hills, valleys
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Explanation:

In fingerprint terminology, the raised lines are known as ridges. These ridges are what create the unique patterns on fingerprints. The valleys, which are the spaces between the ridges, are called furrows. This is a standard definition in the field of fingerprint analysis.

Answer:

ridges, furrows