Minerals have an ordered internal atomic arrangement. What does this mean?
A. Atoms in a mineral must be in the shape of either a cube, a tetrahedron, or an octahedron.
B. Atoms in a mineral are arranged in a random fashion.
C. Atoms in a mineral are arranged in an ordered geometric pattern.
D. Atoms in a mineral must all be of the same type of element.
Answer: C
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A 1000-kg car and a 2000-kg car are hoisted the same distance in a gas station. Raising the more massive car requires
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Indigenous Canadians and Americans grouped by ethnic identity include all but which group?
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Alfred Wegener's theory of continental drift seems so reasonable today. Why was it rejected during the early 20th century?
a) His jigsaw puzzle fit of the continental land mass showed large gaps and areas of overlap. b) He could not provide a driving mechanism for the continents that could plow through the ocean basins. c) His mountain formation concepts were not adequate. d) The best evidence would not be available until sea floor dating and magnetic reversal data came along decades after his death. e) All of the above