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Axiom
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Altocumulus cloud
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Combustion
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Passphrase
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Phase transition
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Sampling frequency
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Eukaryote
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Osteoporosis
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Gradualism
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Prostrate shrub
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Jitter
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Sigmoidoscopy
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Java
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Venus Express
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Carcinoma
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Turnip
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Globular
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Albuginea
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Rough stone
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Mollusc
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Whale watching
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Invisible Web
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Quake
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Ichthyosis
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Notonecta
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Monsoon
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True coordinates
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Photolyase
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Undulated green slate
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Lumbar vertebra
Basic rock
Basic rock is igneous rock containing 45% to 52% of SiO2 (silica, or quartz).
Among the basic rocks are:
- basalts;
- gabbros;
- phonolites etc.
Basalt, basic rock. © Thomas Ribiere, Camptocamp CC by sa 2.0
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