Revision – The Aswan Dam and Aral Sea - Keywords
Arable - Crop growing.
Artificial fertilizer - Fertilizers produced from manufactured chemicals.
Environmental impact - The effect that something has on the land, air, water, scenery, soils.
Erosion - The wearing away of land by water.
Evaporation - The transfer of water to the air as water vapour.
Flood plain - The wide flat valley floor of a river which the river flows over in times of a flood.
Infiltration - The movement of water into soil surface and underlying rocks.
Intensive farming - A system of farming that uses large quantities of fertilizer and machinery in order to increase crop yields or output from farm.
Irrigation - Watering the land by means of channels, sprinklers and drip systems.
Migration - The movement of people from one place to another.
Pesticide - Chemical sprays used to kill insects which would otherwise feed on crops.
Resettlement - People having to move to another area to live.
Water stress - Insufficient water to meet the requirements of a particular country or region.