Which environmental impact would not be a result of placer mining?
A) contamination of underground aquifers.
B) smothering aquatic life.
C) clogging streams with silt.
D) destroying streambed habitats.
E) introducing toxic compounds to streams
Ans: A) contamination of underground aquifers.
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Which of the following best matches the description?Soil type with good drainage and texture that is ideal for agriculture.
A. mechanical weathering B. soil texture C. friable D. contour farming E. chemical weathering F. lithosphere G. weathering H. soil profile I. terrace J. asthenosphere K. horizon L. leaching M. soil structure N. loam O. parent material P. windbreak Q. humus
The primary difference between a spit and a barrier island is
A. the wind direction. B. spits form lagoons. C. their formation. D. their latitude of occurrence. E. the quantity of beach drifting.
What is the tectonic setting of the large 2011 Tohuku earthquake in Japan?
A. rifting in the Sea of Japan, west of the island B. slip along a subduction zone (megathrust) C. slip along a transform fault that cuts through Japan D. slip along a transform fault that is just offshore to the north
The wisest course to take when confronted with an approaching tornado is to ____________________
Fill in the blank with correct word.