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Spleen
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Lung
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Constellation of Leo
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Resonance effect
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LH
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Covalent bond
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Pyrophyllite
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Io
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Crenellation
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Maintenance
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Critical temperature
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P80
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Astrocyte
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RC2
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Semi-permeable membrane
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Chelicerae
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Nasal polyp
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Eurasian shrew
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Expansion valve
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Prevention
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Mineral water
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Heart
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Accommodation
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Japanese maple
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Quantum mechanics
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Spring equinox
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Drag force
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Toslink
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Gmail
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Colour rendering index
Permafrost
Permafrost is soil (or rock) that remains at a temperature equal to or less than 0°C for at least two years.
Permafrost
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