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03:43 GEO206: Let's Review: Mechanical Weathering GEO206: Let's Review: Mechanical Weathering	GEO206: Let's Review: Mechanical Weathering rock weathering frost rocks salt water wedging process surface climates cracks fragments swings cases soil crack heaving processes place weekend From Juliegh Bookout 37 plays 0
07:00 Establishment - Part 9 Establishment - Part 9	Establishment - Part 9 soil cracks sod side turf height weight fertilizer water roots air texture zone root clay plugs situation color rhizomes sand From David Gilstrap 4,671 plays 0