DRRR GEOLOGICAL

Question 1

are gradual or sudden natural earth processes which cause injury, loss of life, property damage, loss of livelihood and services, social and economic disruption, or environmental changes

Answer 1

geological hazards

Question 2

is a ground movement on a sloping terrain

Answer 2

landslide

Question 3

Southwest Monsoon that brings heavy rainfall during the months of June-October

Answer 3

Habagat

Question 4

Trade Winds from NorthEast hardly brings any rainfall

Answer 4

Amihan

Question 5

3 major causes of landslides

Answer 5

1. Geology
2. Morphology
3. Human Activity

Question 6

– refers to the material of the soil or rock in an area or can be the layers of
earth have weakened or stiffened in some part.

Answer 6

geology

Question 7

– refers to the structure of the land. The soil or rock has weakened through
loss of vegetation or root system which holds the soil in place. Another is prolonged rainfall or heavy water leakage that increases the weight of the land mass therefore
as the water flows, sediments and soil comes with it

Answer 7

morphology

Question 8

– to make way for agriculture and construction, trees are needed to be cut down, irrigation, deforestation, and excavation can weaken the integrity of the
earth.

Answer 8

human activity

Question 9

3 basic types of landslides

Answer 9

1. Fall
2. Flow
3. Slide

Question 10

when soil, or rock, or both starts to detach from a steep slope along a surface on which little or no shear
displacement has occurred.

Answer 10

fall

Question 11

is recognized as the forward rotation out of a slope of a mass of soil or rock material around a point or axis below the center of gravity of the
displaced mass

Answer 11

topple/tumble

Question 12

occurs when the head of the displaced material may move almost vertically downward, and the upper surface of the displaced material may tilt backwards toward the scarp

Answer 12

slide

Question 13

a rotational slide where you can observe several parallel planes

Answer 13

slump

Question 14

occurs due to liquefaction or flow or extrusion of the underlying softer material

Answer 14

spread

Question 15

s a spatially continuous movement in which the surfaces of shear are
short-lived, closely spaced, and usually not preserved. The component velocities in the displacing mass of a flow resemble those in a viscous liquid.

Answer 15

flow

Question 16

are essentially large, extremely rapid, often open-slope flows formed when an unstable slope
collapses and the resulting fragmented debris is rapidly transported away from the slope

Answer 16

debris avalanche

Question 17

can occur on gentle to moderate slopes, generally in fine-grained soil,
commonly clay or silt, but also in very weathered, clay-bearing bedrock. These types of landslides can range from very
slow (creep) to rapid and catastrophic

Answer 17

earthflow

Question 18

is the informal name for a slow earthflow and consists of the imperceptibility
slow, steady downward movement of slope-forming soil or rock

Answer 18

creep

Question 19

a landslide that occurs due to prolonged or heavy rainfall, increasing the weight of the land mass

Answer 19

rain-induced landslide

Question 20

is a depression or hole in the ground caused by some form of collapse of the surface layer

Answer 20

sinkhole

Question 21

4 types of sinkholes

Answer 21

1. solution dissolution
2. cover subsidence
3. cover collapse
4. artificial sinkholes

Question 22

It occurs in areas where calcareous is exposed on the ground or where thin layers of soil and permeable sand are also covered

Answer 22

solution dissolution sinkhole

Question 23

This occurs when the bedrock is covered with deep layer of soil and earth. A crack starts once the bedrock begins to get eroded. Weak points begin to form in the layers of soil above. The weak points
eventually become a large hole within the bedrock that cannot support the
weight above it.

Answer 23

cover collapse sinkhole

Question 24

This occurs when the bedrock is covered with
soil ad materials that are not well-knitted together. The soil in these areas are
mostly made of clay or sand. Once the bedrock starts to erode, the clay or
sand starts to enter through the cracks and settles into the space left behind,
creating a cavity on the surface of the soil. I

Answer 24

cover subsidence sinkhole