Where do glaciers typically form?

Glaciers typically form in regions characterized by low temperatures and high snowfall. This environment allows for a significant accumulation of snow, which, over time, compacts under its own weight and transforms into ice. This process requires sustained cold conditions, ensuring that the annual snowfall exceeds the amount of snow that melts or evaporates during warmer seasons.

In contrast, areas with high temperatures and low snowfall would not support glacier formation because the combination of heat and insufficient snowfall would prevent the necessary accumulation of ice. Coastal regions with high humidity may experience snowfall, but they do not inherently provide the cold temperatures needed for glacier development. Finally, flat plains with ample rainfall do not have the specific conditions of low temperatures and high snowfall that are crucial for glacier formation. Thus, the correct answer reflects the conditions that nurture the creation and sustenance of glaciers.