StudentsSpeak #6_ GEOSC 10 (SP 24 MERGED)_ Geology of the National Parks
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School
Pennsylvania State University *
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Course
010
Subject
English
Date
Apr 3, 2024
Type
Pages
4
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StudentsSpeak #6 Due Feb 14 at 11:59pm
Points 1
Questions 6
Available Feb 12 at 12am - Feb 14 at 11:59pm
Time Limit None
Instructions
This quiz was locked Feb 14 at 11:59pm.
Correct answers are hidden.
Score for this survey: 1 out of 1
Submitted Feb 12 at 12:36am
This attempt took 2 minutes.
Question 1
0 / 0 pts
In a few days or weeks
You Answered
In a few years or decades
In a few centuries or millennia
Never
Question 2
0 / 0 pts
Welcome to this week's "The Students Speak!" class survey. Its the usual five (5) questions, and asks for you to share what you know and think about rivers,
sediments, and water in the ground.
Have a great week studying Unit 6!
Before getting back on their tour bus, a whole bunch of people visiting Penn State’s University Park
campus empty their leftover coffee into a sinkhole near Beaver Stadium. Caffeine affects fish in much
the same way that it affects humans. When will the fish in Spring Creek, just down the hill from the
Stadium, get jittery from the caffeine? The same group of people then go out to central Iowa for a game, and staying far away from sinkholes
and caves, dump a lot of coffee on rocks made from sand and mud.
You Answered
In a few days or weeks
In a few years or decades
In a few centuries or millennia
Never
Question 3
0 / 0 pts
You Answered
A dam has trapped the sediment from the river upstream of the canyon, and released clean water.
Rivers such as the Colorado are normally very clear, and only become muddy during thunderstorms that trigger floods.
Rivers such as the Colorado are normally clear year-round, so the clarity is not surprising here.
The catfish in the Mississippi River will know about the dastardly deed:
Above is a photograph of WPSX-videographer Topher Yorks filming Stephanie Shepherd at the bottom
of the Grand Canyon, discussing the Colorado River as part of the PSU CAUSE class. The river water is
quite clear, as you can see next to Topher.
Why is the water so clear?
Question 4
0 / 0 pts
Turbulence where the rivers enter the sea has caused suspended sediment in the seawater to flocculate and settle,
forming the deposits seen on the right
You Answered
Rivers have delivered sediment to the sea, forming flat-topped deposits called deltas
Rivers have delivered sediment to the sea, forming deltas that built up as they built out so that they still slope slightly
downhill toward the sea
Divers have built the mud piles to slow down the river water and protect endangered clams that live along the coast
Question 5
0 / 0 pts
What happened in the picture above?
The figure above shows in orange and red the areas of the Mississippi Delta that have been lost over the
last few decades, and in yellow and green the areas added over the same time.
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No. Natural disasters happen, and that is that.
No. The lost wetlands would have served as a "ramp" that the storm surge ran up to get to New Orleans; getting rid of
the wetlands thus reduced the wave height and helped prevent an even bigger disaster.
You Answered
Yes. The lost wetlands would have slowed the storm surge, helping protect the city.
Question 6
1 / 1 pts
You Answered
True
False
Survey Score: 1 out of 1
Might this have anything to do with the disaster in New Orleans?
I hereby verify that I have completed StudentsSpeak #6 and I would like my 1 point, please!