channel degradation
61Eurotunnel — Création 28 mars 1986[1] Personnages clés jacques Gounon Jean Louis Raymond, P …
62Marine terrace — A marine terrace, coastal terrace[1], raised beach or perched coastline is a relatively flat, horizontal or gently inclined surface of marine origin[2], mostly an old abrasion platform which has been lifted out of the sphere of wave activity… …
63Nutritional Economics — is a synthetic concept that deals with the interplay between economic systems, nutritional status and food security, and how changes in the former affect the latter. If economic and environmental changes in a community affect access to food, food …
64Agriculture — General …
65Soil — For other uses, see Soil (disambiguation). A represents soil; B represents laterite, a regolith; C represents saprolite, a less weathered regolith; the bottommost layer represents bedrock …
66Ghaghara River — Not to be confused with Ghaggar River. Coordinates: 25°45′11″N 84°39′59″E / 25.75306°N 84.66639°E / 25.75306; 84.66639 …
67Optical fiber — A bundle of optical fibers A TOSLINK fiber optic audio c …
68Atchafalaya Basin — The Atchafalaya Basin, or Atchafalaya Swamp, is the largest swamp in the United States. Located in south central Louisiana, it is a combination of wetlands and river delta area where the Atchafalaya River and the Gulf of Mexico converge. The… …
69HiRISE — The High Resolution Imaging Science Experiment camera is a camera on board the Mars Reconnaissance Orbiter. The 65 kg, $40 million (USD) instrument was built under the direction of the University of Arizona s Lunar and Planetary Laboratory by… …
70Climate change in Australia — Climate change has become a major issue in Australia due to drastic climate events since the turn of the 21st century that have focused government and public attention.[1] Rainfall in Australia has increased slightly over the past century,… …
