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Earthquakes

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Bailee Jacobi

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โˆ™ 2021-10-18 18:34:57
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Cards in this guide (31)
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.

What is formed by glacial erosion

Eskers

How did opponents of continental drift account for the existence of similar fossils on widely separated continents

migration across land bridges

What is the zone above the snowline on a glacier called

The zone of accumulation.

What process occurs when an earthquake's shaking turns loose soil into mud

the answer is liquefaction

How much of an increase in wave amplitude is seen from an earthquake measuring 5.4 on the Richter scale compared to one measuring 4.4

Ten times

How many earthquakes have occurred in Hawaii

1,526,578

Which seismic waves compress and expand rocks in the direction the waves travel

P Waves

What is the main type of weathering in deserts

Physical Weathering (aka Mechanical Weathering) is the main type of weathering in deserts.

Why can a heavy rain shower cause a large amount of erosion in a desert area

There is a lack of vegetation

Over time sand dunes tend to migrate

in the same direction as that the wind blows

A succession of ocean waves set in motion by a submarine earthquake

The succession of waves is called a tsunami.

What are the three main types of glacial erosion

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

Why are limiting development on floodplains effective

Limiting development on floodplains is effective in controlling floods because this allows floodplains to absorb floodwaters without harm to structures

Which was not used in support of the continental drift hypothesis

composition of meteorites

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 2 ways that glaciers erode the land

abrasion and plucking

What is the difference of the P waves and S waves used to locate an earthquake's epicenter

P waves, also called primary waves, are the first waves to be registered on a seismograph. The S waves, or secondary waves, are the second and slower wave to register on the seismograph. When locating an earthquakes epicenter seismologists take the first reading of the P wave, and then take the reading from the S wave. At the station of where the earthquake was recorded, seismologists draw a large circle from where the earthquakes epicenter could be. TO exactly located the earthquakes epicenter there needs to be at least 3 dfferent staions where the earthquake hit to determine its epicenter using the S and P time interval. 

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

longitudinal dunes

Why was Alfred wegeners idea that tidal forces might cause continental drift refuted as impossible

It would stop earth's rotation.

Showed that the tidal forces needed to move continents would stop earths rotation.

What is Loess deposited by

Loess is deposited by wind.

During an earthquake the ground surface moves

in any direction

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.

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

moisture is lacking and organic acids are scarce ;D

What was the reason wegeners continental drift hypothesis was rejected

His evidence was incorrect.

Tropical soils are generally poor and thin due to

Leanching

When wind creates a sand dune what is the the sheltered side of the dune

The side downwind of the prevailing wind direction.

The trace that records an earthquake from seismic instruments is called a

magnitude

Is this statement true or false P waves and S waves are two kinds of seismic waves.

True

How do ancient glacial deposits in Africa India Australia and South America support the idea of continental drift

G

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