Which of the following colors has the longest wavelength?
A) violet B) green C) orange D) blue E) red
E
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Which type of country would you expect to have already depleted its reserves of strategic minerals? A strategic mineral is defined as one that is essential to national defense.
A. more-developed B. less-developed C. emerging (like China) D. third world
Formaldehyde is used in
a. particle board b. paneling c. furniture stuffing d. foam insulation e. all of these answers
Not much dolomite is observed to be precipitating from solution in modern geologic environments. This probably means that:
a. the conditions were more conducive to precipitation of dolomite in the geologic past b. dolomite must have formed from calcite after deposition by the replacement of calcium by magnesium in the mineral structure c. dolomite is probably forming today, but we haven't located the environments where it is taking place d. dolomite must have formed from gypsum after deposition by the replacement of calcium by magnesium in the mineral structure
Coral reefs are made of ____
a. volcanic rock b. gravel-sized marine sediments c. seaweed d. limestone skeletons of tiny marine animals