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Earth Science U6 - CFU - Lessons 1-3 (3/18/2026)

Last updated about 4 hours ago

12 questions

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2

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2

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6

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2

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2

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2

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2

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2

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2

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2

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1

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1

Question 1

1.

The picture shows an oxbow lake. Which of the following accurately describes how it is formed.

A large boulder cut off a section of the river to form the lake. 

Deposition of sediments in the water caused part of the river to be blocked off from the main stream forming the oxbow lake. 

Humans built a dam to cut off part of the river to reduce flooding 

Question 2

2.

When sediment is deposited at the bottom of a mountain and spreads along the flat valley floor, it forms a _______.

moraine

mass movement

alluvial fan

delta

Question 3

3.

Which of these are types of Mechanical Weathering? (Choose ALL That Apply)

Root Wedging

Frost Wedging

Thermal Expansion

Oxidation

Question 4

4.

When wind and water from a hurricane move sediment, this is considered a type of

Deposition

Erosion

Weathering

Question 5

5.

Rivers flow faster on the outside of their curves (cut banks) causing

deposition

erosion

weathering

flooding

Question 6

6.

Where is most of the freshwater on earth located?

Oceans

Streams

Rivers

Glaciers

Question 7

7.

Clay is impermeable. This means that __________________________.

it is heavy

it cannot break

fluid cannot pass through

Question 8

8.

River speed is ______________ on the inside of their curves causing deposition, creating sand/point bars)

Faster

Slower

Question 9

9.

If runoff speed and volume______________ with a higher elevation gradient then, ___________ size sediment can move farther down the river.

Other Answer Choices:

larger

smaller

decreases

increases

Question 10

10.

A small lake cut out from an old river meander.

Higher in the mountain with steep drops

The area of a river where the water empties into a bay or lake.

Question 11

11.

What landform is created by a receeding glacier?______________________________

Question 12

12.

A fast running river with high discharge rate can move heavy more dense rocks.

True

False

Wind deposits sediments into the river causing part of the river to be blocked off from the main stream forming the oxbow lake. 