to sink to new depths
51Fisheries glossary — This is a glossary of terms used in fisheries, fisheries management and fisheries science. A * Abundance is a measure of how many fish are in a population or a fishing ground. See relative abundance and absolute abundance.* Acoustic survey a… …
52Sinkhole — For the War of 1812 battle, see Battle of the Sink Hole. For the type of wallet, see Wallet band#Swallet. A sink hole in Oman …
53List of Sonic X episodes — Sonic X Sonic X is a 2003 Japanese anime television series based on the Sonic the Hedgehog video game series. The first fifty two episodes ran consecutively from April 2003 to March 2004 in Japan while the remaining were only available on DVD. In …
54plate tectonics — plate tectonic, adj. Geol. a theory of global tectonics in which the lithosphere is divided into a number of crustal plates, each of which moves on the plastic asthenosphere more or less independently to collide with, slide under, or move past… …
55river — river1 riverless, adj. riverlike, adj. /riv euhr/, n. 1. a natural stream of water of fairly large size flowing in a definite course or channel or series of diverging and converging channels. 2. a similar stream of something other than water: a… …
56Earthquake — For other uses, see Earthquake (disambiguation). Global earthquake epicenters, 1963–1998 …
57Mantle (geology) — For other uses, see Mantle (disambiguation). Earth cutaway from core to exosphere. The mantle is a part of a terrestrial planet or other rocky body large enough to have differentiation by density. The interior of the Earth, similar to the other… …
58Cambrian substrate revolution — The Cambrian substrate revolution cite journal | author=Bottjer, D.J., Hagadorn, J.W., and Dornbos, S.Q. | title=The Cambrian substrate revolution | journal= | volume=10 | date=2000 | url=http://www.amherst.edu/ jwhagadorn/publications/CSR.pdf |… …
59World War I — the war fought mainly in Europe and the Middle East, between the Central Powers and the Allies, beginning on July 28, 1914, and ending on November 11, 1918, with the collapse of the Central Powers. Abbr.: WWI Also called Great War, War of the… …
60Atlantic Ocean — Atlantic , North Atlantic , South Atlantic , and Atlantic Basin redirect here. For other uses, see Atlantic (disambiguation), North Atlantic (disambiguation), South Atlantic (disambiguation), and Atlantic Basin (disambiguation). The Atlantic… …
