Weathering and erosion;

 Continuously wear down and carry away rock at Earth's surface.

Weathering;

The process that breaks down rock and other substances at Earth's surface.

* Heat,cold, water, and ice all contribute to weathering

Erosion;

Weathering, Erosion, and Depostion;

act together in a cycle that wears down and builds up Earth's surface.

Gravity;

causes mass movement including;

*Landslides

*Mudflows

*Slump    

*Creep   

*Landslides: rock, and soil, SLIDE down a sleep slope.

 *Mudflows: Rapid downhill movement; which is a mixture of water, rock, and, and soil

* Slump: A mass of rock, soil, that suddenly slides down a slope.

* Creep: Slow downhill movement of rock ,and soil

The causes {agents} of mechanical weathering include:

* Fezzing and thawing

* release and pressure

*plant growth{roots, roots, roots}

*action of animals

*abrasion {the grinding awayof rock by other rock particles carried in water, ice or wind}

The causes {agents} of chemical weathering include:

*action of water

* action of oxygen

*action of carbon dioxide

* living organisms

*acid rain

Soil is a mixture of;

* rock particles 

* minerals

* decayed organic materials

* water

*air

Moving Water;

is the major cause of the erosion that has shaped Earth's land surface.

Sediment;

 is the the erodede material that is carried by water or wind.