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anushkascience
unit 1
Question | Answer |
---|---|
Constructive forces | Processes which raise or build up the surface of the earth |
Destructive forces | Processes which lower the surface of the earth |
Deposition | The process of dropping, or depositing sediment in a new location. |
Earthquakes | Vibration of the Earth caused by energy that has been stored along a fault. |
Volcano | Type of mountain formed when tectonic plates push magma from under the Earth's surface;this hardened lava forms a mountain. |
Delta | A deposit of soil or silt formed wherever a swift stream or river empties into a lake,ocean or a slower river.It has a triangular shape |
Sand dune | A mound of sand that is deposited by the wind |
Faults | A large crack in layers of rock where movement has occurred. |
Erosion | Carrying away weathered soil,rock,and other materials on the Earth's surface by gravity,water'and wind |
Weathering | Process of physical disintegration and chemical decomposition of solid rock materials at or near the Earth's surface |
Decomposer | An organism that obtains energy from decaying organic material |
Organisms | A living thing |
Seismological studies | The study of earthquakes and the structure of the Earth,by both naturally and artificially generated seismic waves. |
Flood control | Any activity designed to reduce the flow and impact of a flood including levees,reservoirs,and dams |
Dam | A barrier controlling the flow of water and backing up water. |
Levee | a long,narrow embankment usually built to protect the land from flooding,can occur naturally along a river. |
Beach reclamation | The process a reestablishing a beach after severe erosion has depleted it |