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2.3 - Mass Wasting

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✅EvaluateQuestion 1 of 19

Mass wasting is best described as:

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✅EvaluateQuestion 2 of 19

Soil creep is usually:

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✅EvaluateQuestion 3 of 19

A landslide is the downslope movement of:

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✅EvaluateQuestion 4 of 19

Which feature is a common clue that soil creep has been occurring?

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✅EvaluateQuestion 5 of 19

Which factor generally increases the chance of mass wasting?

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✅EvaluateQuestion 6 of 19

Which human activity can increase landslide risk most directly?

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✅EvaluateQuestion 7 of 19

The main force that causes mass wasting is:

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✅EvaluateQuestion 8 of 19

After 150 mm of rainfall in 24 hours, a hillside fails and blocks a road. Which factor most directly triggered the failure?

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✅EvaluateQuestion 9 of 19

A slope is made of clay-rich material. Compared with a slope of solid, well-cemented rock, it is more likely to fail because clay-rich material:

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✅EvaluateQuestion 10 of 19

A road cut is made at the base of a steep slope. Soon after, small slips occur. The road cut increased landslide risk mainly by:

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✅EvaluateQuestion 11 of 19

Which situation is most likely to produce a mudflow/debris flow on a volcanic island?

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✅EvaluateQuestion 12 of 19

A hillside shows fresh cracks near the top and bulging ground near the bottom. These signs most strongly suggest:

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✅EvaluateQuestion 13 of 19

Which combination would generally LOWER landslide risk on a hillside community?

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✅EvaluateQuestion 14 of 19

A hillside has many joints (cracks) in the underlying rock. This increases mass wasting risk mainly because joints:

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✅EvaluateQuestion 15 of 19

A student claims, 'If material moves downhill, it is always erosion.' Which evaluation is best?

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✅EvaluateQuestion 16 of 19

A coastal cliff is undercut by waves. Later, a large section collapses and a pile of debris forms at the base. Which sequence best matches processes to events?

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✅EvaluateQuestion 17 of 19

A hillside community wants to reduce landslide risk before the hurricane season. Which plan is MOST effective overall?

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✅EvaluateQuestion 18 of 19

A slope is very hard rock but highly jointed. A nearby slope is slightly softer rock with few joints. Which is more likely to fail first during prolonged rain, and why?

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✅EvaluateQuestion 19 of 19

After heavy rain, a slope fails and sends material into a river. The river becomes muddy and later deposits silt on lowland farms. Which option best identifies the main processes in order?

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✅EvaluateQuestion 1 of 19

Mass wasting is best described as:

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