Flood-a rising or overflowing of water mainly in dry land
Weathering-the action of the weather conditions in altering the color, texture, composition, or form of exposed objects
Deforestation- the action or process of clearing of forests
Earth's plates- tectonic plate
Landslides-the usually rapid downward movement of a mass of rock, earth, or artificial fill on a slope
Glaciers- a large body of ice moving slowly down a slope or valley or spreading outward on a land surface
rapid process erosion- rapid eroding
slow process erosion-slow eroding
Tsunami- a great sea wave produced especially by submarine earth movement or volcanic eruption
Earthquake- surface soil usually including the organic layer in which plants have most of their roots and which the farmer turns over in plowing
Debris- the remains of something broken down or destroyed
Topsoil- surface soil usually including the organic layer in which plants have most of their roots and which the farmer turns over in plowing
Sediment-surface soil usually including the organic layer in which plants have most of their roots and which the farmer turns over in plowing
Volcanoes-a vent in the crust of the earth or another planet or a moon from which usually molten or hot rock and steam issue
Canyon- something shaped like a capital Greek delta
Plateau-a usually extensive land area having a relatively level surface raised sharply above adjacent land on at least one side
Dune- a hill or ridge of sand piled up by the wind
delta- something shaped like a capital Greek delta
Valley- a depression of the earth's surface usually between ranges of hills or mountains
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