Global warming will likely affect forests by
A) shifting most forest types toward the equator.
B) increasing rates of photosynthesis.
C) decreasing their overall extent.
D) all of the above
E) none of the above
B
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If a rock is metamorphosed but does not contain foliation or lineation, what has probably happened to the rock?
A. It was only flattened during metamorphism. B. It has been deformed but not metamorphosed. C. It has not been metamorphosed. D. It has been flattened and stretched while it was metamorphosed. E. It has been metamorphosed but not deformed.
Heat transfer from the equatorial regions to the poles ceased during the ____
A)Paleogene B)Paleocene-Eocene Thermal Maximum C)Paleogene Thermal Maximum D)Holocene glaciation E)Pleistocene glaciation
A deep-water wave occurs when the water depth is equal to at least ________
A) the fetch B) wave height C) wavelength D) 1/2 of the wavelength E) 1/20 of the wavelength
Recent research suggests that ________ is now the key limiting factor in phytoplankton growth in the Gulf of Mexico
A) nitrogen B) sunlight C) oil pollution D) phosphorus E) temperature