The diversity pattern of reef-building coral observed in today's oceans is related to which of the following?
A) Increased nutrients provided by upwelling
B) The distance from Earth to the Sun
C) The El Nino Southern Oscillation
D) The mass extinction that killed the dinosaurs
E) The past positions of the continents
E
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Soil moisture that plants are capable of accessing and using is called
A) wilting point water. B) free molecular water. C) capillary water. D) hygroscopic water.
What is the largest trading bloc in the world?
A) North American Free Trade Agreement B) Latin American Free Trade Agreement C) Association of South East Asian Nations D) European Union E) World Trade Organization
About 88 percent of geologic time is represented by the time span called the ________. Precambrian Mesozoic Paleozoic Phanerozoic
What will be an ideal response?
A filled DEM means that:
A. Cells with 'no data' have been removed from the raster. B. An elevation value has been filled for each cell in the raster. C. Sinks have been removed from the raster. D. None of these is correct