#(11) multible choice quetions Note that Seward is built on a flat area of coast
ID: 235635 • Letter: #
Question
#(11) multible choice quetions
Note that Seward is built on a flat area of coastline in an area that is otherwise very steep and rugged.
How do you think this area of very flat land formed? Is there any relationship between this feature and the river/glacier valley just to the west of Seward?
a-This is sediment that has been transported due to longshore drift along this coastline. It all happened to get deposited in front of the valley.
b-This is most likely sediment washed in during a storm and then exposed as sea level changes. The storn must have particularly washed into the valley.
c-This is most likely sediment deposited by the river (and formerly a glacier) into the ocean, and now it has been exposed as sea level changes.
d-There is no relationship between the valley and the sediment. This is just the ocean floor from when water was deeper.
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(12)
As apparent sea level continues to change in the area around Seward, the community will need to plan for the future.
Of the options listed below, pick the two that seem most sensible given the predictions you can make about the the evolution of the shoreline through time
a-People should be encouraged to move into the mountains to higher ground
b-Beachfront levees should be built to protect from higher winter storm waves.
c-The docks may need to be rebuilt closer to the shoreline as the shoreline position changes.
d-Shipping channels that access the docks will probably need to be dredged out more frequently to keep the water deep enough to allow ships to enter the port.
e-Sand should be brought in to replenish the shoreline
for second question i need to choose two answer
a-People should be encouraged to move into the mountains to higher ground
Explanation / Answer
11)C)This is sediment that has been transported due to longshore drift along this coastline. It all happened to get deposited in front of the valley.
It is because that Seward cannot develop in a storm. Remember it is otherwise very steep and rugged, just flat in between, so its a valley
12)c-The docks may need to be rebuilt closer to the shoreline as the shoreline position changes.
d-Shipping channels that access the docks will probably need to be dredged out more frequently to keep the water deep enough to allow ships to enter the port.
It is because the shoreline position has changed
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