costal erosion - the process by which the surface of a coast is gradually destroyed through the action of wind, rain, etc., overgrazing - the practice of allowing animals such as cows to eat the plants on an area of land for too long so that the plants disappear completely, oil spills - an act of letting oil come or fall out of a container, overfishing - the process of taking so many fish from the sea, a river, etc. that the number of fish in it becomes very low, deforestation - enlarge imagethe act of cutting down or burning the trees in an area, invasive species - spieces spreading very quickly and difficult to stop, intensive agriculture - methods of farming aimed at producing as much food as possible using as little land or as little money as possible, waste treatment - a process by which materials that are no longer needed are cleaned,, salinity - the fact of containing salt; the amount of salt contained in something, drain - to make something empty or dry by removing the liquid from it; to become empty or dry in this way, pasture - land covered with grass that is suitable for feeding animals on, biodiversity - the existence of a large number of different kinds of animals and plants which make a balanced environment, defoliation - the act of destroying the leaves of trees or plants, especially with chemicals, regeneration - the process of making an area, institution, etc. develop and grow strong again, depletion - the reduction of something by a large amount so that there is not enough left, marine populations - particular groups of animals living in the sea, over-exploitation - the use of land, oil, minerals, etc. more than usual, extinction - a situation in which a plant, an animal, a way of life, etc. stops existing, weeds - wild plant growing where it is not wanted, especially among crops or garden plants, estuary - the wide part of a river where it flows into the sea,

Environment_issues_protections_Unit 19

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