coastal protection Flashcards
(24 cards)
What is hard engineering?
Hard engineering involves the use of concrete and other man-made structures to protect coastlines.
True or False: Hard engineering methods are typically more environmentally friendly than soft engineering methods.
False
Name one common method of hard engineering used to protect coasts.
Sea walls
Fill in the blank: A __________ is a structure built parallel to the coastline to prevent erosion.
groin
What is the primary purpose of a sea wall?
To protect the coast from wave erosion.
Multiple Choice: Which of the following is NOT a method of hard engineering? A) Sea wall B) Groin C) Beach nourishment D) Riprap
C) Beach nourishment
What is riprap?
Riprap is a layer of large stones placed on the shore to absorb wave energy.
True or False: Hard engineering methods are permanent solutions to coastal erosion.
False
What is a disadvantage of using hard engineering methods?
They can disrupt natural processes and harm marine ecosystems.
Fill in the blank: A __________ is a structure built to redirect wave energy away from the shore.
breakwater
What is the main function of groins?
To trap sand and reduce erosion on beaches.
Multiple Choice: What is the primary material used in constructing sea walls? A) Wood B) Steel C) Concrete D) Sand
C) Concrete
True or False: Hard engineering solutions require regular maintenance.
True
What is a potential consequence of using hard engineering methods?
Increased erosion in areas adjacent to the structures.
Fill in the blank: __________ are constructed to stabilize the shoreline and prevent sand loss.
Groins
What is the role of a breakwater?
To create a sheltered area for boats and reduce wave energy at the shore.
Multiple Choice: Which hard engineering method is designed to protect harbors? A) Beach nourishment B) Groins C) Breakwaters D) Sea walls
C) Breakwaters
What is one advantage of hard engineering methods?
They provide immediate and visible protection against erosion.
True or False: Hard engineering methods can lead to increased tourism.
True
Fill in the blank: __________ is a type of hard engineering that involves placing large rocks along the shoreline.
Riprap
What is a disadvantage of sea walls?
They can reflect wave energy and exacerbate erosion elsewhere.
Multiple Choice: Which of the following is an example of a hard engineering solution? A) Sand dune restoration B) Sea wall C) Vegetative planting D) Wetland creation
B) Sea wall
What is the primary goal of hard engineering coastal strategies?
To prevent coastal erosion and protect property.
True or False: Hard engineering solutions are generally more cost-effective than soft engineering solutions.
False
