What type of volcanic structure is Shiprock, New Mexico, and how did it form?
What will be an ideal response?
Shiprock is a volcanic neck. When a volcano becomes inactive, congealed magma often becomes preserved in the feeding conduit of the volcano as a crudely cylindrical mass. Over time, all volcanoes will succumb to forces of weathering and erosion. Over time, the rock occupying the volcanic conduit, which is highly resistant to weathering, may remain standing above the surrounding terrain long after the cone has been worn away.
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Classify the following bonds as ionic, covalent, or neither (O, atomic number 8; F, atomic number 9; Na, atomic number 11; Cl, atomic number 17; U, atomic number 92). O with F Ca with Cl Na with Na
A. covalent, ionic, covalent B. ionic, covalent, neither C. neither, ionic, covalent D. covalent, ionic, neither
In the northern hemisphere, suppose you observe the upper-level winds blowing from the south. In which direction from you is the trough of low pressure?
A. west B. east C. north D. south
In which biome would one most likely find xerophytic species?
A) Boreal and montane forest B) Midlatitude broadleaf and mixed forest C) Tropical rain forest D) Deserts
The gradient of the stream between the two ends on the accompanying figure is
A. 1 to 1. B. 1 meter per kilometer. C. 6 to 1. D. 10 meters per kilometer. E. 100 meters per kilometer.