18 Oct Barrier systems are separated from the mainland by the

Barrier systems are separated from the mainland by the ________________________.

 

frontbarrier

 

backbarrier

 

sidebarrier

 

tombolo

 

Question 2In regions where sediment is abundant _________________ barriers typically develop.

 

wide

 

narrow

 

Question 3In addition to sedimentation, barrier size is also influenced by which factor(s)?

 

wave regime

 

tidal regime

 

both a and b

 

none of the above

 

Question 4The most dynamic feature of barriers is the:

 

beach

 

barrier interior

 

landward margin

 

Question 5What is a swale?

 

waves with a strong uprush

 

a species of opportunistic vegetation

 

the area where the barrier ends in a lagoon or bay

 

the area in between dune ridges on a barrier

 

Question 6If the backbarrier shows signs of overwash deposits, then the barrier itself is most likely:

 

prograding

 

retrograding

 

aggrading

 

Question 7Barrier islands are cross cut by:

 

overwash deposits

 

tidal flats

 

tidal inlets

 

barrier spits

 

 

 

Question 8The most unstable portion of a barrier island is the area closest to the:

 

 landward margin

 

 bay or lagoon

 

frontal dune ridge

 

tidal inlet

 

Question 9Tectonically speaking, barrier systems are most commonly found along which type of coastline?

 

amero trailing

 

afro trailing

 

collision coast

 

neo trailing

 

Question 10The largest barrier system anywhere on Earth is located where?

 

Gulf Coast US

 

East Coast India

 

West Coast US

 

East Coast US