Relative to the A horizon, the B horizon of soil should have:
c a. low clay and high organic matter content
b. high clay and high organic matter content
c. high clay and low organic matter content
d. low clay and low organic matter content
c
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________ mine drainage results from oxidation of sulfide-bearing deposits
Fill in the blank(s) with correct word
Which of the following is true about a molecule which contains three polar bonds which have the same degree of polarity?
A) The molecule will always be polar. B) The molecule will never be polar. C) The molecule will be polar if the electron distribution is trigonal planar. D) None of the above is true.
The sea level rise in the past 15,000 years is due to ________.
A. variations to Earth's rotational spin B. thermal expansion of the ocean's water C. global land mass subsidence D. increased precipitation E. melting glaciers
Which of the following modern seven seas was also recognized by pre-15th century Europeans as one of their seven seas?
A) The Red Sea B) The Mediterranean Sea C) The Black Sea D) The Caspian Sea E) The Indian Ocean