Poulaphouca - dam on the LIffey, Shasta - a dam in the Central Valley, Sacramento - river that is dammed to form a reservoir in California, California - state that the Central Valley is in, tillage - agriculture that grows crops, pastoral - agriculture based on livestock, dairy - an example of pastoral farming, irrigation - artificially adding water to the land, salmon - a migratory species, Irish Box - an area with fishing restrictions, sonar - that helps detect shoals of fish, cool temperate oceanic - Ireland's climate, 1000mm - annual rainfall in Wexford, coillte - agency that runs Ireland's forestry, agriculture - main cause of deforestation in the Amazon, chlorine - this is added to water to kill bacteria, flouride - this is added to water to strengthen teeth and bones, leather - cow hides are the raw material for this product, Hydro electric power - a way of producing electricity without releasing CO2, carbon dioxide - a greenhouse gas, humus - dark jelly like substance that gives soil fertility, leaching - process whereby heavy rain destroys soil fertility, bacteria and fungus - decomposers in soils, earthworms - they help aeration and drainage in soils, ploughing - a process on a farm, capital - an input on a farm, milk - an output on a farm, Rosslare - a ferry port, Killybegs - a fishing port in Donegal, C.F.P - an E.U policy that regulates the fishing industry,

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