ESSENTIALS OF OCEANOGRAPHY: EXAM 1 || WITH ERROR-FREE SOLUTIONS.
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ESSENTIALS OF OCEANOGRAPHY
Institution
ESSENTIALS OF OCEANOGRAPHY
If 18.25 mL of an 0.0020 M iodate solution is rquired to titrate a 10.00 mL sample of vitamin C solution, What is the molarity of the ascorbic acid in the solution? correct answers The individual oceans (Atlantic, Pacific, Indian, etc.) on the earth are physically cut off from one another by land b...
ESSENTIALS OF OCEANOGRAPHY: EXAM 1 || WITH
ERROR-FREE SOLUTIONS.
If 18.25 mL of an 0.0020 M iodate solution is rquired to titrate a 10.00 mL sample of vitamin C
solution, What is the molarity of the ascorbic acid in the solution? correct answers The individual
oceans (Atlantic, Pacific, Indian, etc.) on the earth are physically cut off from one another by
land barriers that prevents the mixing of waters between different ocean basins.
When boat technology was developed ~40,000 years ago, what was probably the main
motivation for humans at this time wanting to travel around the ocean? correct answers They
were mainly following their food sources. C
How is a scientific theory different from a scientific hypothesis? correct answers A scientific
hypothesis is a tentative initial explanation for a phenomenon that can be tested, and a scientific
theory is an explanation for a phenomenon that is very well established and substantiated by an
abundance of evidence. C
The density stratification of the interior layers of the earth tell us what important information
about the early formation of the planet? correct answers It tells us that in its early formation, the
earth was completely molten.
This interior layer of the earth is composed mainly of magnesium silicate rocks and some iron.
correct answers MANTLE
This interior physical layer of the earth is liquid. correct answers OUTER CORE
This interior physical layer of the earth is 'plastic' in nature, in that it is capable of flowing over
long time scales. correct answers ASTHENTHOSPHERE
This compositional layer of the earth is very thin and composed mostly of silicate rocks. correct
answers CRUST
Oceanic crust floats lower in the mantle than continental crust because correct answers Oceanic
crust is thinner and denser than continental crust. Correct
The earth is approximately how old? correct answers ~4.6 billion years old Correct
What is one theory for how earth's early (and more permanent) atmosphere formed? correct
answers The earth's early atmosphere formed from the outgassing of water vapor, carbon
dioxide, hydrogen, and other gases from the earth's interior.
Which of the following best describes the formation of the early ocean? correct answers The
oceans formed about half a billion years after the earth formed, probably largely due to the
condensing of early atmospheric water vapor. Correct
, Despite the fact that Alfred Wegener's theory of continental drift was in good agreement with the
scientific observations available at the time, the theory was ultimately widely rejected by the
scientific community. Why? correct answers The theory could not offer a plausible mechanism
for how the continents actually move or what forces are moving them.
Tectonic plates move away from each other at what type of plate boundary? correct answers
divergent
The Himalayan mountain range is a result of this type of plate boundary. correct answers
continent-continent convergent
REMEMBER... correct answers A hotspot is thought to result from a thermal plume existing in
the mantle underneath the plate that is relatively stationary and sustains volcanism on the surface
of the crust, producing island chains like Hawaii as the plate moves slowly over the hotspot.
Confirmation of seafloor spreading was supported by the... correct answers age of seafloor
The seafloor magnetic pattern is best described as... correct answers parallel to and symmetric
about ocean ridges.
The Hawaiian Islands- Emperor Seamount Chain is a feature formed by/at correct answers a
hotspot.
The earth's tectonic plates are pieces of the correct answers lithosphere
The earth's continents have always been in the same position on the earth that they are today.
correct answers FALSE
The majority of the earth's active volcanoes and large earthquakes are located/occur correct
answers in and around the Pacific Ocean basin.
The method that is used most frequently to investigate sediment and rock layers of the sea floor
is correct answers sound waves
Deep linear scars in the deep ocean floor caused by plate convergence correct answers ocean
trench
narrow and deep valleys on continental slopes correct answers Submarine canyon
A generally flat zone extending from the shore to the shelf break correct answers continental
slope
Flat depositional areas that cover extensive portions of the deep-ocean basins correct answers
Abyssal Plain
Active continental margins are characterized by... correct answers Deep-sea trenches
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