Before becoming glacial ice, compact granular snow melts and refreezes into the substance called ____________________, with a density of about 0.5 grams per cubic centimeter
Fill in the blank(s) with correct word
firn
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What kind of landform is illustrated by the cluster of small hills in the northern portion of the map? Explain their development.
The questions is based on Figure 45-3, a portion of the “Antelope Peak, Arizona” quadrangle (scale 1:62,500; contour interval 25 feet). In the northern portion of the map, a gently sloping pediment is visible (32°47'52"N, 112°05'21"W). You may view this map in color by going to the Lab Manual website or by scanning the QR code for this exercise. What will be an ideal response?
Composite volcanoes are so called because they
A) are a combination of shield volcanoes, cinder cones, and other volcanoes. B) have many different types of geologic hazards. C) were first discovered on the island of Composita in Italy. D) are composed of lava flows, pyroclastic material, and mudflows. E) None of these are correct.
Which terrestrial ecosystem or life zone produces the lowest net primary productivity per year?
A. taiga B. extreme desert C. desert scrub D. temperate grassland E. agricultural land
What processes of diffusion involving the New England, Middle Atlantic, and Chesapeake Bay cultural hearths most account for the development of an Eastern United States folk architecture?
A. contagious and cascade B. cascade and hierarchical C. relocation and expansion D. hierarchical and relocation