High salt concentrations give a striking whitish surface to ________
A) salinas
B) wadis
C) alcove arches
D) pedestals
E) mesas
Answer: A
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________ vegetation is dominated by low, tender-stemmed plants and low, woody shrubs
A) Tundra B) Tropical forest C) Coniferous forest D) Tropical Savanna E) Desert
Which statement explains a cause for sea level to fall?
A) ?Periods of global glaciation trap ocen water in land-based glaciers. B) ?Global warming causes seawater to expand and occupy more volume. C) ?High rates of seafloor spreading causing expansion in volume of oceanic ridges. D) ?Sediments shed by the continents during periods of rapid erosion occupy more volume.
Given the reaction 2 HgO(s) ? 2 Hg(l) + O2(g). What weight of elemental mercury will be obtained by the decomposition of 94.5 g of HgO
A) 43.8 g B) 78.5 g C) 87.5 g D) 175 g
Which of the following best defines temperature?
A) The amount of heat energy required to raise the temperature of a substance by 1 degree Celsius. B) The direct measure of the average kinetic energy of a substance's molecules. C) The energy needed to break the intermolecular bonds that hold molecules in place. D) The energy transfer from one body to another due to a difference in temperature. E) Weak interactions that become significant when molecules are very close together.