Batholiths and stocks can be important sources of minerals, such as ____________________ and
____________________. Fill in the blank(s) with the appropriate word(s).
gold, copper
copper, gold
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Which of the following statements is not true about a block operation?
A. A block operation is similar to a neighborhood operation. B. A block operation does not move from cell to cell, but from block to block. C. A block operation assigns the calculated value to all cells in a block. D. None of these are correct
Which of the following would be a negative ion with a single charge?
A) an atom with 11 protons and 12 electrons B) an atom with 11 protons and 11 electrons C) an atom with 12 protons and 11 electrons D) an atom with 10 protons and 12 electrons E) none of the above
Which of the following best matches the description?The crust and solid outer mantle of the earth.
A. horizon B. terrace C. soil texture D. contour farming E. leaching F. asthenosphere G. windbreak H. parent material I. soil structure J. loam K. weathering L. friable M. chemical weathering N. soil profile O. lithosphere P. mechanical weathering Q. humus
Most of the people killed by the Mount St. Helens eruption of 1980 ________.
A. were in a town thought to be within a safe-zone B. were burned by lava flows C. had gone around barriers meant to keep people out of 'harms' way D. drowned when a large dam failed E. were scientists on top of the mountain