The thick ________ horizon in the soil profile shown in the diagram below is one of the distinguishing features of the ________ soil type.
A. B; oxisol
B. B; ultisol
C. O; oxisol
D. O; ultisol
Answer: B
Environmental & Atmospheric Sciences
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A. webcams and airborne drones B. sea surface buoys and ocean bottom pressure sensors C. spotters in airplanes D. LIDAR and reports from Coast Guard ships E. satellite photography and radar
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An analysis of the map of U.S. soft drink terminology shows that the word "pop" is more common in
a. Oregon. b. New Mexico. c. Mississippi. d. Florida. e. California.
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What pH value is considered neutral?
A. 1 B. 5 C. 7 D. 10 E. 13
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Tree-ring dating, or dendrochronology, is a relative dating method
a. True b. False
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