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Hydrology is the study of the distribution, movement, and quality of water on Earth. It involves examining the physical and chemical properties of water, as well as how water interacts with the environment. This field encompasses a wide range of topics, including the water cycle, groundwater flow, surface water hydrology, and water resources management. Hydrologists utilize various techniques and tools to collect and analyze data related to water, in order to better understand and manage this essential resource.