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Geoscience Unit 2 review || Already Graded A+.
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A series of elevated terraces (former wave-cut platforms) along an active plate boundary coast is evidence for correct answers uplift of the continental crust What cause landslides? correct answers Wildfire, earthquake, poor engineering, freezing and thawing, rain, deforestation River terrace...

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  • September 26, 2024
  • 5
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • a series of elevated terraces former wave cut pla

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  • Geoscience Unit 2
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Geoscience Unit 2 review || Already Graded A+.
A series of elevated terraces (former wave-cut platforms) along an active plate boundary coast is
evidence for correct answers uplift of the continental crust

What cause landslides? correct answers Wildfire, earthquake, poor engineering, freezing and
thawing, rain, deforestation

River terraces form by correct answers repeated flooding over several years, uplift of land the
river passing through, downcutting by the river which causes new, lower floodplains to form

Which of the following geologic structures would you expect to see along the gulf coast? correct
answers barrier islands, offshore sand bars, and sand dunes because the gulf coast is a
depositional coast

Barrier islands are typically found correct answers on continental margins that are not also plate
boundaries

In which of these locations do you think the landslide risk is greatest? correct answers California,
Oregon, Washington, Alaska and Hawaii

Which of the following is most likely to cause downslope sliding of soils? correct answers heavy
rain

Sand dunes get their sand correct answers from the beach, by wind

The Edwards Aquifer is developed in what type of rock? correct answers Limestone

By definition, below the water table pores in a sandstone would be correct answers filled with
water

Spring correct answers Intersection of the water table and land surface

Artesian well correct answers Only occurs in a confined aquifer

Cone of depression correct answers Develops around water wells with pumping

Aquifer correct answers A rock with the pore space saturated with water

Aquiclude correct answers A shale layer

A "hydrograph" is best described as a plot of ________. correct answers River discharge (y axis)
against time (x axis).

In general, what kind of rock is most likely to have both high porosity and high permeability?
correct answers Sedimentary

, how does sediment transport in rivers correct answers Flowing water exerts force on sediment,
causing it to be transported, Larger sediment usually moves by rolling and hopping along the
river bed, Coarse sediment moves rarely in most rivers.

What is the probability that a 10 year flood will happen in any given year? correct answers 10%

Which of the following can influence the size of floods? correct answers Wildfire, earthquake,
poor engineering, freezing and thawing, rain, deforestation

Hydraulic gradient of an unconfined aquifer is ________. correct answers The slope of the
groundwater table

The height of the water in a well in an unconfined aquifer indicates correct answers he level of
the water table

Meandering rivers primarily occur where? correct answers In areas of shallow slope with flood
plains

A rock that has large, abundant pores, but these pores are disconnected would have ________.
Correct Answer correct answers high porosity and low permeability

Which of the following would make the best aquifer or oil/gas reservoir? correct answers
Sandstone with many connected pores

All else equal, a larger hydraulic gradient will cause groundwater to flow __________. correct
answers faster

Urbanization makes floods happen sooner and worse by: correct answers Removal of vegetation
Paving street etc
Removal of topsoil
Changing topography
Storm sewer systems
Modification of streams

Permeable layer examples correct answers coarse sandstone, unconsolidated sediments

Impermeable examples correct answers shale, unfractured igneous or metamorphic rock

Rockfall correct answers when loose rocks fall down a steep slope

Landslide correct answers a slide of a large mass of dirt and rock down a mountain or cliff

slump correct answers the downward slipping of a mass of rock or unconsolidated material
moving as a unit along a curved surface

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