Marine Science midterm Exam Questions Correct Solutions Current Update (Verified 100% Pass)
What is the ocean? - Answers -It is a large body of salt water that fills a large depression in the earths surface.
The difference between ocean and sea is that sea refers to smaller bodies of water.
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Marine Science midterm Exam Questions
Correct Solutions Current Update (Verified
100% Pass)
What is the ocean? - Answers -It is a large body of salt water that fills a large
depression in the earths surface.
The difference between ocean and sea is that sea refers to smaller bodies of water.
What is the Hydrosphere? - Answers -This is the total mass or weight of the water found
on, under, or above the surface of the planet. This only accounts for less than .25% of
the weight of the earth.
What is groundwater? - Answers -Groundwater is water from below the surface of the
earth.
Freshwater? - Answers -Is water without salt in rivers lakes and ponds. This water is
held in glaciers.
How was the ocean formed? - Answers -The temperature of the earth dropped, causing
clouds to form and consistent rain for 20 million years. Once the surface of the earth
cooled down, rain started to form oceans. The rain receded enough to allow land to
emerge.
The lower mantle: - Answers -The lower mantle is not consistent throughout since
sections closest to the earths core are more liquid than solid rock.
The upper mantle: - Answers -The border of the upper mantle is solid rock. The upper
mantle greatly impacts the plates.
The inner core: - Answers -The inner core is very hot with temperatures up to 9,000
degrees or higher making the elements to hot to move so they vibrate. It has 45 million
pounds of pressure per inch square.
What are plate techtonics: - Answers -The surface of the earth, or the lithosphere, is
always shifting beneath us. If the movements are jarring enough, it causes natural
disasters. These are on top of the upper mantle.
Continental Drift: - Answers -The seven continents were once a single land mass. The
continents moved away from each other using centrifugal force is the energy that
pushes a body away from a spinning center.
Is it true that sea levels can rise but cannot become lower? - Answers -No this is not
true. They can rise and fall.
, Why are theories sometimes disproven? - Answers -New discoveries show they are
incorrect.
Is it true that the the thinnest layer of the earth is the crust? - Answers -Yes, this is true.
What is a hot spot? - Answers -An area where magma is significantly hotter.
The San Andreas Fault is known for: - Answers -The number of earthquakes it creates.
The island chain of Hawaii was created by: - Answers -Volcanic eruptions
Is it true that the scientific method has been around since the 17th century? - Answers -
Yes, this is true.
What is the scientific method? - Answers -Scientists use the same methods to reach
their conclusions. This method is: questioning, creating a hypothesis, conducting
experiments or making observations, reaching a conclusion.
How do icebergs contribute to rising sea levels? - Answers -They melt and increase the
amount of water in the ocean.
How long do scientists estimate that the sea has been at its current level? - Answers -
2,500 years
Is it true that Alfred Wegener was the first to offer scientific evidence for the theory of
continental drift? - Answers -Yes, this is true. The continental drift is the separation of
the Pangea, which means all land, using centrifugal force.
The thinnest layer of the earth is: - Answers -The crust.
The history of Sir Isaac Newton's study of gravity does which of the following? -
Answers -Illustrates how a theory becomes a law
The hydrosphere includes except: - Answers -Gases. It includes seas, rivers, and
groundwater, but not gas.
What is the steps of the scientific method in the correct order? - Answers -Questioning,
hypothesis, experiment, conclusion
Is it true that Mauna Loa is the most active volcano on Earth? - Answers -Yes!
A water molecule's shape resembles: - Answers -A triangle
The example of El Niño illustrates: - Answers -The impact of currents on weather. El
Niño Southern Oscillation refers to the cycle of warm and cold temperatures
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