This diagram shows magnetic stripes on either side of the mid-ocean ridge. How many times did the magnetic field change polarity to form all of the stripes shown here?
A. five times
B. eleven times
C. three times
D. twice
Answer: A
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In the discontinuous reaction series, which mineral crystallizes FIRST from a cooling magma?
a) Olivine b) Pyroxene c) Amphibole d) Biotite e) Potassium feldspar
How does construction destabilize a slope?
A. adds weight to the top of the slope B. decreases water content of the slope C. increases the shear strength of the slope D. adds weight to the bottom of the slope
All the following statements about the concept of diffusion and about cultural phenomena are true EXCEPT:
A) Diffusion explains the distribution of all cultural phenomena. B) Sometimes the same phenomenon does occur spontaneously and independently at two or more places. C) We should never assume that any aspect of culture has diffused unless we can demonstrate the path of diffusion from one culture to another. D) Independent invention of different kinds of innovations, such as the use of the zero as the basis of a numerical place system, has occurred in human history. E) Diffusionist arguments have been used to minimize or underestimate the ingenuity of various peoples.
An argillic B horizon is enriched in ________ transported from the A horizon
Fill in the blank(s) with correct word