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Wingspan
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Phobos-Grunt
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Sea-green
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Density
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Sialography
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Ramsar Convention
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Gamma ray
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Schists
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Bowel
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Urate
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McNaught's comet
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Tweeter
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Methanisation
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Vitamin C
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Crystalline facies
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Transporter protein
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Sedimentary basin
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Webcam
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True anomaly
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Hololecratic
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Hoar frost
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Max Havelaar
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Crawlway
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Primary energy
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Subspecies
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Columbia
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ADD
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EUCEB
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Hypersaline water
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Spore formation
Undermining
Undermining is the hollowing action of flowing water (sea water or fresh water) on a river bed, bank, cliff, or engineering works (dykes, bridge piers, etc.).
Consequences of undermining
Undermining is an erosion phenomenon which can cause collapse, the rupture of dykes and flooding.
Undermining of a bank after a flood. © F. Lamiot, Wikimedia CC by 3.0
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