FILL IN THE BLANKS Increase or Decrease DEFINITION
100
Multiple landslide events in the same place can be ___________, _________, or ___________.
Retrogressive, piecemeal, or reactivate
100
The presence of more plants (increases or decreases) the vulnerability of an area to landslides.
Decreases
100
Changes in water flow.
WATER DOING SOMETHING DIFFERENT
200
_________ are created by the stress of geological material pulling apart.
Tension Cracks
200
High and frequent rainfall (increases or decreases) the occurrence of a geologic hazard.
Increases
200
These are caused by the stress and friction produced by geologic materials moving apart which forms steep lines of cracks in the terrain.
TENSION CRACKS
300
_________ trees are a patch of angled forest on a slope
J-curved
300
Earthquake on an uphill area (increases or decreases) exposure to landslides.
Increases
300
Deformation and movement of non-living objects not caused by human manipulation can also indicate a landslide.
THINGS MOVING
400
Water levels on a creek suddenly dropping can be due to
______________.
An upstream obstruction like a landslide
400
Extremely dry weather can (increase or decrease) the occurrence of sinkholes.
Increases
400
If there’s frequent occurrence of landslides in a section, it implies that the soil in this area is weak and has unstable geology; thus, more susceptible to landslides.
EARLIER LANDSLIDE AS INDICATOR
500
___________ is a very wet, very mobile landslide, where water is loaded with trees, mud, rock, and everything else caught in the current.
Debris flow
500
Heat during a wild fire (increases, decreases) the hydrophobic capacity of the soil.
Increases
500
Springs, seep, or wet ground may appear on a seemingly dry terrain. Similarly, unexpected withdrawal of water also indicates the same. Water causes alteration of the pressure within the slopes of a terrain.
WATER DOING SOMETHING DIFFERENT






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