Severe leaching of tropical lateritic soils has produced economically important ore deposits of
A. tin.
B. iron.
C. copper.
D. aluminum.
Answer: D
Environmental & Atmospheric Sciences
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What is a biome?
What will be an ideal response?
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Unconformities represent
A) a gap in the geologic record B) a time when the rock sequence was below sea level C) a period of igneous intrusion D) an example of the principle of superposition
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Which of the following is not a heteroatom?
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