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Geology

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Joanne Skiles

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Cards in this guide (19)
What is the French word for a bowl-shaped mountain depression carved at the head of a glacial valley

Cirques

Wind carrying sand grains deposits the sand when the wind

Wind carrying sand grains deposits the sand when the wind slows down or hits an obstacle.

Abrasion changes the desert surface by

cutting and polishing exposed rock surface

What force causes most of the erosion in desert areas

Running Water

Windblown silt that blankets a landscape is called

desert pavement <--- wrong

What are the three main types of glacial erosion

The 3 main types of glacial erosion are plucking, abrasion and freeze thaw.

Major earthquake are sometime preceded by smaller earthquakes - true or false

True! The small magnitude earthquakes that sometimes precede a major earthquake are known as fore shocks.

Almost two-thirds of the earths fresh water is located

Almost 2/3 of the Earth's freshwater is located in the Antarctic Ice sheet in the Southern Hemisphere.

What cause the shape of star dunes

chemical weathering..

What type of sand dunes will likely form if the sand supply is limited the wind direction is constant and vegetation is sparse

barchan dunes

Why don't most desert streams empty into the ocean

Ephemeral deserts streams dry up before they reach the ocean

What is an ephemeral stream

st only last for a day

What are long sand ridges oriented nearly parallel to the prevailing wind called

longitudinal dunes

What are dry flat lake beds located in the center of basins in arid areas are called

Playas

The thick loess deposits in south Dakota Nebraska and Iowa come from-

The thick loess deposits in South Dakota, Nebraska, and Iowa come from glacial sediments.

The boundaries of history of eras are marked by great worldwide changes in

The boundaries of history of eras are marked by great worldwide changes in continental coastline

Elastic rebound is similar to what happens when you release

A stretched rubber band

In the desert environment the chemical weathering of rocks is generally reduced because

moisture is lacking and organic acids are scarce ;D

Tropical soils are generally poor and thin due to

Leanching

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