What conclusion do geographers draw when they observemoraines-ridgelike piles of rock and debris?

Geographers conclude that moraines are indicators of past glacial activity, as they are formed by the accumulation of rock and debris that glaciers transport and deposit. The presence and characteristics of moraines help geographers understand the movement, extent, and retreat of glaciers over time. Additionally, studying moraines can provide insights into the climatic conditions that facilitated glacial formation and movement in a given region.