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Ice Age (Zaman Es)
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Human System
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Hypolimnetic
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Hydrological systems (Sistem Hidrologi)
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Impact Assessment (Penilaian Dampak)
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Hydrological Cycle (Siklus Hidrologi)
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Hydrographic Events (Peristiwa Hidrografik)
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Hydrosphere (Hidrosfir)
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Hybrid Vehicle (Kendaraan Hibrid)
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Human Security
