Land Features
Deposition Prevention
Geological Statistics
Erosion and Deposition
Potpourri
100

Physical shapes of land such as hillsides, cliffs, plateaus, valleys, mountains, and many others are referenced as what?

Landforms

100

This process is done through digging up sand and sediment in one area and moving it to another

Dredging

100

The sum of a set of data divided by the sample size is also referred to as what?

The mean
100

The force that places sediment further down river after the sediment has broken away from the rock is known as....

Deposition
100

What are the most common structures used to reduce the rate of cliff erosion caused by waves?

Seawalls

200

Rivers that flood and leave sediment deposits in the land are creating this landform.....

Floodplains

200

Piles of rock built next up against a cliff or shoreline are called what?

Seawalls

200

The median number in the following set of data is.....

3, 4, 8, 9, 10, 11

8.5

200

When water carves out a canyon, where does sediment get carried to?

The sediment gets carried downriver eventually being deposited in a delta

200

The process of breaking rocks into smaller pieces is called weathering.  What causes weathering?

Wind, Water, Ice, Plants and Roots

300

A triangular tract deposited at the mouth of a river is referred to as what?

A delta

300

A rock structure that is built parallel to the shore is known as what?

Breakwater

300

The mode in the following set of data is.....

2, 2, 3, 4, 3, 2, 5, 3, 2, 5, 4, 2, 3

2

300

Forces that destroy land through erosion are known as what force?

Destructive

300

What is a river channel?

The course of river water, the channel can either be straight or curved

400

Depending on the coastal topography and the composition of the rock, coastal erosion can also lead to the formation of what land features?

Caves, sea stacks and arches

400

A rock structure built perpendicular to the shore is known as what?

A jetty
400

The mean for the following set of data is.....

94, 87, 74, 57, 88, 111, 78, 89

84.75

400

Why does erosion always lead to deposition?

Erosion takes sediments from one place and deposition places the sediments in a new location

400

In areas where cliffs are made of compacted sand or soft rock, cliffs can erode at a rate of how fast per year?

1 meter per year

500

Rainwater that pick up carbon dioxide from plants and animals and creates a weak acid as it seeps into the ground creates what structure?

Caves

500

A stream of water in the ocean that runs parallel to the shore and moves sand across the face of the beach is referred to as what?

A longshore current
500

Which data set has a higher mean?

Set A - 34, 7, 99, 20, 18


Set B - 16, 16, 98, 32, 16

They are the same average 35.6

500

One drawback of using mitigating factors for erosion is which of the following?

It can accelerate erosion on either side of the structure.

500

How does cliff erosion caused by waves begin?

The undercutting of the cliff below the waterline.

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