Which of the following best matches the description?Movement of minerals from the A horizon to the B horizon.
A. lithosphere
B. parent material
C. asthenosphere
D. mechanical weathering
E. terrace
F. soil structure
G. contour farming
H. loam
I. leaching
J. soil texture
K. chemical weathering
L. humus
M. soil profile
N. friable
O. weathering
P. horizon
Q. windbreak
Answer: I
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Caliche is
A) fragmented quartz crystals that tumble down a cliff. B) limestone crystals that form by precipitation. C) calcite cement in desert rocks. D) silica cement in ancient river-bed rocks.
Like rivers, landforms along shorelines are shaped by the balance between:
A) the temperature of the water and the temperature of the surrounding area B) sediment arriving in a portion of the shore and then being removed from it C) The weight of the sediments in the water and the weight of the sediments arriving D) the speed of the arriving sediments and the ability of the river to generate its own sediments E) the temperature of the sediments arriving and its weight
Catastrophic subsidence into sinkholes tends to occur more often in areas underlain by ________.
A. basic freshwater flowing through sandstone B. basic saltwater flowing through sandstone C. basic freshwater flowing through limestone D. acidic freshwater flowing through limestone E. acidic saltwater flowing through sandstone
Which the following denotes the positively charged particles in an atom's nucleus?
A) neutrons B) isotrons C) electrons D) protons