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Question 1

What is river erosion?

Answer 1

The process by which flowing water removes soil and rock from the riverbed and banks.

Question 2

True or False: Meanders are straight sections of a river.

Answer 2

False

Question 3

What is the main cause of river meandering?

Answer 3

The erosion and deposition of sediment along the riverbanks.

Question 4

Fill in the blank: The outer bank of a meander is typically called the _____ bank.

Answer 4

cut

Question 5

What is a waterfall?

Answer 5

A place where water cascades over a vertical drop or cliff.

Question 6

Which type of rock is most commonly associated with the formation of waterfalls?

Answer 6

Hard rock, such as granite or basalt.

Question 7

Multiple Choice: What is the term for the process of sediment being deposited at the inner bank of a meander? A) Erosion B) Deposition C) Transportation D) Abrasion

Answer 7

B) Deposition

Question 8

What is the significance of a river’s velocity in terms of erosion?

Answer 8

Higher velocity increases the river’s capacity to erode material.

Question 9

True or False: Waterfalls can form in areas with uniform bedrock.

Answer 9

False

Question 10

What is a plunge pool?

Answer 10

A deep basin formed at the base of a waterfall due to the force of falling water.

Question 11

Fill in the blank: The process by which rocks are worn down by the action of water is known as _____.

Answer 11

abrasion

Question 12

Multiple Choice: Which of the following is NOT a type of river erosion? A) Hydraulic action B) Abrasion C) Corrosion D) Filtration

Answer 12

D) Filtration

Question 13

What is lateral erosion?

Answer 13

The erosion that occurs on the sides of a river channel.

Question 14

True or False: The water level of a river can affect the rate of erosion.

Answer 14

True

Question 15

What is an oxbow lake?

Answer 15

A crescent-shaped lake formed when a meander is cut off from a river.

Question 16

Fill in the blank: The area of land that drains into a river is called its _____.

Answer 16

watershed

Question 17

What is the term for the gradual wearing away of the riverbed and banks?

Answer 17

bank erosion

Question 18

Multiple Choice: Which of the following features is primarily formed by river erosion? A) Delta B) Alluvial fan C) Meander D) Glacial valley

Answer 18

C) Meander

Question 19

What is the difference between vertical erosion and lateral erosion?

Answer 19

Vertical erosion deepens the river channel, while lateral erosion widens it.

Question 20

True or False: Waterfalls can eventually erode the rock they flow over, leading to their retreat upstream.

Answer 20

True

Question 21

What is a river delta?

Answer 21

Landform created at the mouth of a river where it meets a standing body of water, formed by sediment deposition.

Question 22

Fill in the blank: The process of water flowing over rocks can lead to _____, which is the wearing away of the rock surface.

Answer 22

erosion

Question 23

What geological feature forms when a river cuts through a plateau?

Answer 23

Canyon

Question 24

Multiple Choice: Which of the following factors does NOT influence river erosion? A) River volume B) Rock type C) Weather patterns D) Road construction

Answer 24

D) Road construction

Question 25

What is stream velocity and why is it important?

Answer 25

Stream velocity is the speed of water flow, and it is important because it affects the river's ability to erode and transport sediment.