DRRR
Quiz by Reyes, Xophia Fionee Padillo
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- Q1
Philippines is blessed with vast coastlines or shorelines and diverse types of islands of varied sizes. These islands are made of different topographical and hydrophysical components
TRUE
FALSE
300s - Q2
It is the extreme natural event in the crust of the earth that pose a threat to life and property.
Geological Hazard
Landslide
Earthquakes
Sinkholes
300s - Q3
Landslide is a type of “mass wasting” that moves down slope under the influence of gravity.
FALSE
TRUE
300s - Q4
Landslides can occur underwater, called a shallow landslide.
TRUE
FALSE
300s - Q5
They defined landslide as the “downslope movement of soil, rock, and organic materials under the effects of gravity and also the landform that results from such movement.”
Union States Geologic Survey
United States of the Geological Survey
United States Geological Survey
300s - Q6
Sliding surface is located within the soil mantle or weathered bedrock (typically to a depth from few decimetres to some metres). They usually include debris slides, debris flow, and failures of road cut-slopes.
Shallow Landslides
Deep-seated Landslides
Landslide
300s - Q7
What are the natural cause of landslides?
Mining, Deforestation, Urbanization, Soil Pollution
Heavy rainfall, earthquakes, volcanic eruptions, undercutting of cliffs
300s - Q8
Landslides in which the sliding surface is mostly deeply located below the maximum rooting depth of trees (typically to depths greater than 10 meters)
Shallow Landslides
Deep-seated Landslides
Landslide
300s - Q9
Which is NOT a landslide warning?
Springs, seeps or saturated ground in areas that are not usually wet.
New cracks or unusual bulges in the ground, street or sidewalks
Rapid increase in creek water levels, possibly accompanied by increased soil content.
Installation of drainage pipes for rainwater, slope drainage.
300s - Q10
Which is NOT a definition of sinkhole?
Depression or hole in the ground caused by some form of collapse of the surface layer.
Occur in areas where the soil foundation is made of soft minerals and rocks such as limestones, salt beds, or any acidic rocks.
Usually follow a long saturation period that is punctuated by an intense burst of precipitation over several hours or a few days
It could be natural or manmade tunnel or caves collapse.
300s - Q11
Sinkholes mainly occur in what is known as ________ these areas of land where soluble bedrock (such as limestone or gypsum) can be dissolved by water.
tsunami-prone areas
cover-subsidence sinkholes
karst terrain
limestone’s pores
300s - Q12
With cover-subsidence sinkholes the bedrock becomes exposed and is gradually worn down over time, with the holes often becoming ponds as the water fills them in.
TRUE
FALSE
300s - Q13
Which is NOT signs of impending dangers caused by natural-made sinkhole?
Gradual localized ground settlement
A circular pattern of ground cracks outlining the sinking area.
Turbidity in local well water due to sediment washing into limestone’s pores.
None of the above
300s - Q14
A geological hazard map is a map indicating the areas that are vulnerable to hazards caused by earthquakes, volcanic eruptions, and landslides.
TRUE
FALSE
300s - Q15
PhiVolcS
Philippine Institution of Volcano and Seismology
Philippine Institute of Volcanology and Seismology
Philippine Institution of Volcanology and Seismology
300s