Coastal environments

Question 1

What is coastal erosion?

Answer 1

The process by which coastlines are worn away by natural forces such as waves, currents, and tides.

Question 2

True or False: Coastal erosion only occurs during storms.

Answer 2

False

Question 3

What are the main agents of coastal erosion?

Answer 3

Waves, currents, tides, and wind.

Question 4

Fill in the blank: The movement of sediment along the coast is known as __________.

Answer 4

longshore drift

Question 5

What is transportation in the context of coastal processes?

Answer 5

The movement of sediments from one location to another along the coastline.

Question 6

Multiple Choice: Which of the following is NOT a type of coastal erosion? A) Hydraulic action B) Abrasion C) Sedimentation D) Attrition

Answer 6

C) Sedimentation

Question 7

What role do waves play in coastal processes?

Answer 7

Waves contribute to both erosion and the transportation of sediments along the coast.

Question 8

True or False: Coastal deposition occurs when sediments are dropped off in a new location.

Answer 8

True

Question 9

What is the term for the gradual sinking of land near coastlines?

Answer 9

Subsidience

Question 10

Fill in the blank: The area where land meets the ocean is called the __________.

Answer 10

coast

Question 11

Multiple Choice: Which process involves the wearing away of rocks and cliffs? A) Transportation B) Erosion C) Deposition D) Sedimentation

Answer 11

B) Erosion

Question 12

What is a coastal landform created by deposition?

Answer 12

Beach, spit, or delta.

Question 13

True or False: Tides have no effect on coastal processes.

Answer 13

False

Question 14

What is the primary effect of human activity on coastal erosion?

Answer 14

Human activities like construction and deforestation can accelerate erosion.

Question 15

Fill in the blank: __________ is the process by which smaller particles are worn down and carried away by water.

Answer 15

Erosion

Question 16

What is a groin and its purpose?

Answer 16

A groin is a structure built out into the water to interrupt water flow and limit erosion.

Question 17

Multiple Choice: Which of the following best describes longshore drift? A) Movement of water B) Movement of sediments C) Erosion of cliffs D) Formation of beaches

Answer 17

B) Movement of sediments

Question 18

What is the effect of sea level rise on coastal environments?

Answer 18

It can lead to increased erosion and loss of habitat.

Question 19

True or False: Beaches are formed exclusively by erosion.

Answer 19

False

Question 20

What is the primary source of energy driving coastal processes?

Answer 20

Wind and waves.

Question 21

Fill in the blank: __________ refers to the accumulation of sediment in coastal areas.

Answer 21

Deposition

Question 22

What is hydraulic action?

Answer 22

The force of water waves compressing air in cracks of coastal rocks, leading to erosion.

Question 23

Multiple Choice: Which of the following is a factor that influences coastal erosion? A) Climate B) Vegetation C) Human activity D) All of the above

Answer 23

D) All of the above

Question 24

What is the difference between erosion and weathering?

Answer 24

Erosion involves the removal of material, while weathering is the breaking down of rocks in place.

Question 25

True or False: Coastal processes can be completely controlled by humans.

Answer 25

False

Question 26

What is beach nourishment?

Answer 26

The process of adding sand or sediment to a beach to combat erosion.