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Haze	minor concentration of pollutants or natural forms of aerosols in the atmosphere causing a reduction in visibility
Hemisphere	half of a sphere; that portion of the Earth’s surface found between the equator and a pole
Horst	crustal block uplifted from other blocks
Hot Springs	springs discharging heated groundwater at a temperature close to the boiling point
Human Geography	geography that deals with social, economic, and behavioral processes that differentiate places
Humidity	amount of water vapor present in air
Hydrology	science of the Earth’s water and its motions
Hydrosphere	total water realm of the Earth’s surface zone, including the oceans, surface waters of the lands, groundwater, and water held in the atmosphere
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