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Science Unit 2

Unit 2: Predicting and Limiting Impact on Earth's Surface

TermDefinition
dam a barrier constructed to hold back water and raise its level, forming a reservoir used to generate electricity or as a water supply
levee an embankment built to prevent the overflow of a river
sea wall a wall or embankment erected to prevent the sea from encroaching on or eroding an area of land
jetty a structure extended into a sea, lake, or river to influence the current or tide or to protect a harbor
storm drain a drain built to carry away excess water in times of heavy rain
vegetation replacement Process of planting new trees, bushes, or grasses on areas of soil that are bare so the roots hold the soil in place
contour plowing an agricultural practice where land is plowed and cultivated along the natural contours of the land (lines of consistent elevation) rather than straight up and down slopes, to conserve water and reduce soil erosion
terrace farming/terracing a method of farming that involves creating flat, level platforms (terraces) on sloped land to cultivate crops, effectively transforming hillsides into usable farmland while preventing soil erosion and water runoff
flood forecasting the process of predicting the likelihood, timing, magnitude, and duration of floods in a specific area by analyzing hydrological, meteorological, and environmental factors, aiming to provide timely information
seismological studies the study of earthquakes and seismic waves that move through and around the Earth
GIS Maps short for Geographic Information System maps, are dynamic tools that display data layered on top of geographic locations, allowing for customizable combinations of data and spatial analysis
infrared/satellite imagery captures images by detecting the thermal radiation (heat) emitted by objects on Earth's surface or cloud tops, allowing for 24/7 weather observation and analysis, including cloud heights and temperatures
 



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