The theory of plate tectonics can be used to explain all of the following EXCEPT:
A. the presence of magnetic anomalies on the ocean floor.
B. the presence of glacial deposits in what are now tropical areas.
C. the distribution of earthquakes and volcanoes.
D. the origin of mountains.
E. the origin of the Earth's core.
Answer: E
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The boreal forest biome is
A) virtually absent in the Southern Hemisphere because there is little land at the appropriate latitudes and elevations for this climate. B) relatively minor in geographic extent compared to the rain forest and deciduous forest biomes. C) only a small source of storage of carbon. D) home to a great biodiversity of organisms compared with most other biomes.
What makes light absorption in diatoms more effective than just using chlorophyll?
a. Surface-to-volume b. Microbial loop c. Frustule perforations d. Accessory pigments
Synfuels are derived from which natural resource?
A. Coal B. Solar power C. Uranium D. Water
What best describes the basic way in which soils form?
A. physical and chemical weathering of rock B. breakdown of minerals by ultraviolet radiation C. erosion and deposition of sediment D. repeated flooding over long periods of time E. reactions between water and atmospheric oxygen