Glaciers begin to form when snow remains in the same area year-round, where enough snow accumulates to transform into ice.Each year, new layers of snow bury and compress the previous layers. The hard snow becomes even more compressed. It’s just sea ice. A. the . It slowly changes from light, fluffy crystals to hard, round ice pellets. The Arctic is not a glacier. Explain how the following pieces of evidence supported the continental drift theory. how do mountain and continental glaciers affect the land? Continental glaciers in Greenland and Antarctica store roughly 99% of the world’s ice. Which statement identifies a major reason for the subduction that helps to form volcanoes? A continental glacier covers most of a continent or a large island. Soon after falling, the snow begins to compress, or become denser and tightly packed. Continental landform, any conspicuous topographic feature on the largest land areas of the Earth.Familiar examples are mountains (including volcanic cones), plateaus, and valleys. These times are known as ice ages. Where they form - Mountain glaciers form at high altitudes, continental glaciers form at high latitudes. how do glaciers move? Fox Glacier in New Zealand finishes near a rainforest. About 10% of earths surface is covered by a continental glacier. Continental glacier definition is - an ice sheet covering a considerable part of a continent. The continental drift theory. Mountain glaciers sharpen the land, Continental glaciers flatten the land. How Glaciers Form Glaciers begin forming in places where more snow piles up each year than melts. The glaciers advanced and retreated, or melted back, several times. They finally retreated about 10,000 years ago. Continental glaciers aren't restricted of any movement, so the glacier can move in all directions. This compression forces the snow to re-crystallize, forming grains similar in … a rock promontory that is streamlined on the side facing the direction from which the glacier came and abraded the rock, steep on the side toward which the glacier flowed and from which large pieces of rock were plucked; located in zones of exposed bedrock at the base of alpine or continental glaciers ; formed by alpine or continental glaciation A glacier is a large, perennial accumulation of crystalline ice, snow, rock, sediment, and often liquid water that originates on land and moves down slope under the influence of its own weight and gravity. (The term landform also can be applied to related features that occur on the floor of the Earth’s ocean basins, as, for example, seamounts, mid-oceanic ridges, and submarine canyons.) Many times in the past, continental glaciers have covered more, or larger, parts of Earth's surface. CONTINENTAL GLACIERS: Continental glaciers form over continents. 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