The movement of one type of these objects at high altitudes can create cracks called bergschrunds (BEARG-schrundts). These objects are split by the firn limit into two zones, called the zones of accumulation and ablation. When two of these objects are near each other on a mountain, they can cause the formation of an arête (ar-RET). The movement of 
The movement of one type of these objects at high altitudes can create cracks called bergschrunds (BEARG-schrundts). These objects are split by the firn limit into two zones, called the zones of accumulation and ablation. When two of these objects are near each other on a mountain, they can cause the formation of an arête (ar-RET). The movement of these objects caused the formation of such geographic features as moraines. Types of them include cirque, alpine, valley, and continental. For 10 points, name these large moving masses of ice.
The movement of one type of these objects at high altitudes can create cracks called bergschrunds (BEARG-schrundts).
{glaciers} [accept {alpine glacier} or {cirque glacier} or {valley glacier} until "{moraines};" do not