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myscience1

first science words

QuestionAnswer
define constructive forces processes witch raise or build up the surface of the earth.
Define Delta A deposit of soil, usually triangular, formed at the mouth of a river.
define destructive forces processes witch lower the surface of the earth.
define sand dunes a mound of sand that is deposited by the wind.
define deposition the processes of dropping,or depositing sediment in a new location .
define faults a large crack in layers of rock where movement has occurred.
define earthquake vibration of the earth caused by energy that has been stored along a fault.
define erosion carrying away weathered soil,rock,and other materials on the earth's surface by gravity,water,and wind.
define decomposer's an organism that obtains energy from decaying organic material.
define weathering process of physical disintegration and chemical decomposition of solid rock materials at or near the earth's surface.
define organism a living thing.
define a levee a long, narrow embankment usually built to protect land from flooding, can also occur naturally along a river.
define seismological studies the study of earthquakes and the structure of the earth,by both naturally and artificially generated seismic waves
define beach reclamation the process of reestablishing a beach after severe erosion has depleted it.
define flood control any activity designed to reduce the flow and impact of a flood including levees reservoirs,and dams.
define a valcano type of a mountain formed when tectonic plates push magma from under the earth's surface ;this hardened lava forms a mountain.
define a dam a barrier controlling the flow of water, and backing up water.
Created by: katiecrocker
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