What type of volcanic material is indicative of eruption under water?

A) Pahoehoe flows
B) Pyroclastic flows
C) Lava aprons
D) Pillow lavas
E) AA flows


D

Environmental & Atmospheric Sciences

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It is clear that a critical assumption behind the concentric zone model of a city is that it has an isotropic surface, meaning that the model city

A) is flat, uniform and barrier free. B) does not have motorized transportation. C) only has streets that are parallel and perpendicular to each other. D) has high buildings in the center which get lower with distance outward. E) is located on a slope, like a mountain side.

Environmental & Atmospheric Sciences

A stream generates its own floodplain by

A. sediment deposition during flooding. B. sediment deposition during meander migration. C. erosion during meander migration. D. All of the choices are correct.

Environmental & Atmospheric Sciences

As a major importer of products from other countries, the United States has

A) improved public relations. B) increased its economic standing with other countries. C) few domestically manufactured goods. D) accumulated substantial trade deficits.

Environmental & Atmospheric Sciences

During the summer, low-latitude desert regions are under the influence of the:

a. equatorial low. b. subtropical high. c. subpolar low. d. polar high.

Environmental & Atmospheric Sciences