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Liquidus
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Electromagnetic field
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Fossil fuel
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Breast milk
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Endorphins
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Fluorite
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Arboreal
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Radiating texture
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Solar flare
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Anti-aliasing
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Screening
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Epicentre
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Tuberculosis
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Invasive
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FDE&S Form
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OLED
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Flora Fauna Habitat Directive
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Fresh water
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Tempo
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Parkinson's Disease
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Limestone pavement
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Biomonitoring
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Interdisciplinarity
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Criminal entomology
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Hepatitis C
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Cluster
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Epinephrine
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Collaborative software
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Herpes
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Edge
Erg
The term erg is used in geography and physics.
Geography
An erg is a desert with wind dunes. In the Sahara, ergs constitute 20 % of the surface area.
Physics
Erg is the abbreviation of the Greek ergon. It is a unit of measurement for work in the CGS system (physical measurement unit system).
1 erg is equal to 10-7 joules.
There are many ergs in the Sahara. © Alex Lichtenberger, Flickr CC by-nc-nd 2.0
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