Constructive & Destructive Forces on Landforms. 5-3.1. Two Types of Forces. Destructive Forces : processes that destroy landforms. 2 types: Slow (weathering) and Fast (Erosion) Ex. landslides, volcanic eruptions, earthquakes, floods
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Constructive & Destructive Forces on Landforms
wear down, break
Mechanical weathering:the breaking of rock into smaller pieces by forces due to gravity, ice, plant roots, or other physical forces.
Grand Canyon Video
Wave Erosion- caused by water
Wind Erosion (Dust Storm)
Mount St. Helens Video
Saint Helen’s Before
Saint Helen’s After
Volcanoes can be constructive, but also destructive…
San Andreas Fault, California
Tectonic Plates, Volcanoes & Earthquakes
Desert Sand Dunes
Ocean Sand Dunes