Geology - The scientific study of the origin, history and structure of the Earth., Climate - Examples: Annual rainfall, temperature, daylight hours , Evaporation - The change of a liquid into vapour , Drought - A long period of abnormally low rainfall, Community - Interdependent plants and animals, Microclimate - Prevailing weather conditions of a small, specific place within a larger region., Topography - The land formations or surface features of a region., Aestivate - Animal dormancy similar to hibernation, Weed - Any plant that grows wild and profusely among cultivated plants, depriving them of space and food, Subtidal - The area that is permanently covered with water, Intertidal - The area that is above water at low tide and under water at high tide, Endemic - A feature that is unique to a defined geographic location., Dredging - An excavation activity or operation is usually carried out to gather bottom sediments and dispose of them at a different location., Ballast water - Water is taken on board to provide stability for ships., Colonised - Occurs when a species populates an area., Swales - Shallow troughs between sand dunes., Riparian vegetation - Plant habitats and communities along a river's margins and banks., Irrigation - Artificial application of water to arable land for agricultural use., Urbanisation - The physical growth of urban areas as a result of rural migration. , Land reclamation - The process of creating new land from the ocean, riverbeds or lakes. , Exotic species - A species living outside its native distributional range. , Fragmentation - The reduction or breaking up of one area of a habitat into several smaller seperate areas. , Extinct - No longer existing or living, Remnant vegetation - Small patches of native plants that remain after conversion or landscapes to agriculture or other use. ,

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