Earth Forces

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Erosion

The process of eroding or being eroded by wind, water, or other natural agents

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Deposition

The geological process in which sediments, soil, and rocks were added to a landform

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Weathering

Any of the chemical or mechanical processes by which rocks exposed to the weather undergo chemical decomposition and physical disintegration

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Chemical Weathering

What happens when rocks are broken down and chemically altered

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Physical Weathering

Rocks breaking apart without changing their chemical composition

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Sediment

Naturally occurring material that is broken down by processes of weathering and erosion

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Runoff

The draining away of water from the surface of an area

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Groundwater

Water present beneath Earth's surface

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Surface Water

Water on the surface of the planet

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Alluvial Fan

A fan or cone-shaped deposit of sediment crossed and built by streams

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Delta

A nearly flat plain of alluvial deposit between diverging branches of the mouth of a river

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Uplifting

Vertical elevation of the Earth's surface in response to natural causes

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Longitude

Angular distance east or west on the Earth's surface

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Latitude

Distance north or south of the equator