A glacier front will advance if there is more snow at the front of the glacier than is melting at the back of the glacier. D) More snow must fall in the winter than melts in the summer. In cold regions (either towards the poles or at high altitudes), more snow falls (accumulates) than melts (ablates) in the summer season. The ice eventually gets compressed so much that most of the air is forced out of it. This is what causes glacial ice to appear blue. The question, how does a geyser form, can not be answered quickly. Damming has been an important engineering practice for thousands of years, with the first dam being constructed by Ancient Egyptians around 2800 B.C. Their formation requires the combination of specific geologic conditions that are usually found in volcanic terrain. Glaciers can be thought of as remnants from the last Ice Age, when ice covered nearly 32 percent of the land, and 30 percent of the oceans. If the snowpack starts to remain over the summer months, it will gradually build up into a glacier. A glacier (US: / ˈ ɡ l eɪ ʃ ər / or UK: / ˈ ɡ l æ s i ər, ˈ ɡ l eɪ s i ər /) is a persistent body of dense ice that is constantly moving under its own weight. The glacier is in retreat because only a portion of the glacially carved, U … Typically, glaciers exist and may even form in areas where: Most glaciers lie within mountain ranges that show evidence of a much greater extent during the ice ages of the past two million years, and more recent indications of retreat in the past few centuries. 5. Cold wet conditions for a glacier to form. Geysers are temporary features geologically. 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. Restoration of wetlands that absorb flood waters. 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 duration or " life span" of a geyser is at the most several thousand years. Which of the following climate conditions would most likely allow glaciers … B) The snow must be able to move downhill slowly. Geysers are usually associated with volcanic areas. A) The temperature must be cold enough to cause snow to fall regularly. The Army Corps of engineers build man-made levees to protect homes. Also, glaciologists have developed very subtle methods for studying the input-expenditure balance of glaciers. The compression of the glacier continues for dozens, hundreds or even thousands of years, adding more and more layers on top and adding even more weight. Once upon a time, the larger valley glacier flowed down the whole length of the valley, carving out a U-shaped valley. 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