The main effect glaciers had on Florida is that they flattened the land by eroding it. Glaciers are massive sheets of ice that move across land, carrying rocks and sediment with them. As they advance and retreat, glaciers scrape and grind the land beneath them, smoothing out rough terrain and shaping the landscape. This process, known as glacial erosion, can result in the flattening of landforms and the creation of characteristic features like U-shaped valleys and moraines.
Additionally, glaciers filling lakes and aquifers with meltwater is not a significant effect in the context of Florida, as the state does not have a history of glaciation like regions farther north. Glacial effects on ocean levels and climate are also not relevant to Florida due to its location in a subtropical climate zone.
Therefore, the primary impact of glaciers on Florida would be the flattening of the land through erosion. This process would have influenced the topography and shape of the land in the state over geological time scales.
