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Chapter 12 Sec 1


development the construction of buildings, roads, bridges, dams, and other structures
land reclamation the process of restoring land to a more natural state
litter the loose layer of dead plant leaves and stems on the surface of the soil
topsoil the mixture of humus, clay, and other minerals that forms the crumbly, topmost layer of soil
subsoil the layer of soil beneath the topsoil that contains mostly clay and other minerals
bedrock the solid layer of rock beneath the soil
erosion the process by which water, ice, wind, or gravity moves fragments rock and soil
desertification the advance of desert-like conditions into areas that previously were fertile
nutrient depletion the process in which plants use more nutrients than decomposers can replace and that makes the soil less fertile
fallow an area of land left unplanted with crops
crop rotation the planting of different crops in a field each year
nitrogen cycle the process by which nitrogen is removed from the atmosphere, fixed in the soil by bacteria, incorporated into other living things, and then released back into the atmosphere
Created by: bekah0515