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Meridian of a celestial body
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Reaction net energy balance
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Carding
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Yellow fever virus
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Ultrabasic
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Soma
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Quaoar
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Analgesic
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Anther
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Residual error rate
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Columbia
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Macula
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Concretion
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Flood
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Frame-dragging
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Comma
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Gliding
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Bauxite
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Ice-shelf
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Gel-coat
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Sequencing
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Loop
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Astronomical coordinates
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Artichoke
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Evergreen
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Debubblizing
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Bronchitis
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Browser
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Submarine canyon
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Planck constant
Biosphere reserve
Created by the " Man and the Biosphere " UNESCO Programme in 1971, biosphere reserves are intended to promote a balanced relationship between man and the biosphere.
These reserves are studied by scientists interested in the conservation of landscapes and ecosystems, natural resource management and the impact of human activities. They endeavour to serve as models for environmental education and sustainable development projects.
The different concentric zones of a biosphere reserve: from the full reserve in the centre to the transition area where different human activities are allowed. © UNESCO
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