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An abyssal plain is the flattish plain at 13,000-20,000 ft (4,000-6,000 m) that forms the bed of most ocean basins[1].


  1. ^ France, Peter, Guerrero, Angeles Gavira; et al. (2006). Ocean. Dorling Kindersley Inc. ISBN 9780756636920. 
Anatomy of an amiotic egg.svg This article is part of Project Glossary, a All Birds project that aims to write comprehensive articles on each term related to animals.

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