Distinguish among terminal end moraine, recessional end moraine, and ground moraine. Relate these moraines to the budget of a glacier
What will be an ideal response?
Any end moraine is a ridge of till that accumulates at the toe of a glacier. The end moraine that forms at the farthest advance of a glacier is the terminal end moraine, whereas the moraines that form as the ice front is retreating and stabilizing along its retreat are called recessional end moraines. Thus, a terminal end moraine forms during the maximum positive budget of a glacier, while recessional end moraines form during negative glacial budgets. A ground moraine is the layer of till deposited as the ice front retreats and melts away.
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What type of feature is labeled Nisqually Cleaver? List several other features that are the same type, including at least two that are not named Cleaver.
What will be an ideal response?
Scientists search for fossil fuels in many ways. Identifying pockets of fossil fuels by sending sound waves into the ground to reflect off of rock layers is called three-dimensional ________
A) seismic surveying B) sonar surveying C) dynamite surveying D) geologic surveying
Which of the following circulation patterns is characteristic of an anticyclone in the Northern Hemisphere?
A. dry air flowing toward Siberian high B. dry air flowing from Siberian high C. moist air flowing toward Tibetan low D. dry air flowing from the Tibetan low
Water diversion and irrigation has allowed humans to grow crops in areas where natural supplies have been limited. A major challenge that exists in these regions has been ________
A) high trophic-level efficiency B) high pesticide use C) soil erosion D) low crop diversity E) salinization of soils