Landform 4b

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a sinkhole that developed over a period of hours or days and forms from a collapse through the roof of and underground cavern is known as

collapse sinkhole

if material is to move downslope, it must overcome the force of

friction, cohesion of particles and intertidal resistance

Extensive landscapes formed by the dissolution of limestone and other carbonate rock and characterized by pitted, bumpy surface topography, poor surface drainage, and well developed solutions channels are known as

karst topography

chemical weathering processes are particularly effective on limestone landscapes, forming

karst topography

Continuing dissolution and collapse may lead the coalescing of sinkholes to form a

karst valley

the weathering of limestone can create circular depressions known as

sinkholes

which of the following is not a class of mass movement

slip

A slow persistent mass movement of surface soil is called

soil creep

Plants are important to the development of karst primarily because

they supply organic acids that enhance the dissolution process.

Cones and cockpit karst develop in

wet tropical areas

which of the following human activities can contribute to mass movement?

any human disturbance of a slope, including road cuts, surface mining and development

although the news reports in january 2018 called montecito, cali disaster a "mudslide", parts of the flow behaved as a debris flow because

any of these chooses are correct. the "mudslide" was technically a mudflow with portions having like debris flow

which of the following is not necessary for well developed karst to develop

arid conditions

when rainwater attack's formations of limestone the minerals dissolve and wash away with the mildly acid rainwater. this is an example of

carbonation

Any large cave formed by chemical processes is a

cavern

A mass of falling and tumbling rock, debris, and soil traveling at a high velocity owing to the presence of ice or water is a

debris avalanche

the downslope movement of a body of material made up of soil, sediment, or rock propelled by the force of gravity is known as

mass movement

the mass movement process responsible of the curved growing pattern in the trees and the downsloping leaning of the utility post and fence is

soil creep

a slope is (blank) if it's strength exceeds denudation processes and (blank) if it's materials are weaker than denudation processes

stable; unstable

the presence of tali's slope indicated that (blank) occurs

rockfalls

which of the following can lead to slope failure that causes mass movement

saturation, oversteepening of slopes, earthquakes, and volcanic eruptions


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