A(n) ________ fossil is a fossil from a very short-lived, geographically widespread species that existed during a specific interval of geologic time.
A. interval
B. index
C. range
D. assemblage
E. age
Answer: B
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The discontinuous branch of Bowen's reaction series contains the mineral(s)
A. pyroxene, amphibole, and biotite B. pyroxene C. amphibole D. biotite
The benefits of hydraulic fracturing—"fracking"—include
A) opportunities for economic development and a sense of energy independence. B) the lack of environmentally problematic waste products. C) environmentally sustainable oil and gas extraction processes. D) a sustainable source of cheap energy. E) both that it is a sustainable source of cheap energy and it is environmentally sustainable oil and gas extraction process.
In an area of alpine glaciation, sinuous, sharp-edged ridges called ________ and sharp, pyramid-like peaks called ________ are common features
A) tarns; cirques B) cirques; arêtes C) arêtes; horns D) horns; hanging valleys
Calculate the vertical exaggeration of your profile:
(a) Horizontal Scale: 1 inch = ____________ feet
(b) Vertical Scale: 1 inch = ____________ feet
(c) Vertical Exaggeration = ____________ x