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Ocean 102 Exam 4 Questions and Correct Answers Already Passed

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Ocean 102 Exam 4 Questions and Correct Answers Already Passed What is unclear about carbon limitation? - Answer-How much carbon is transported and sequestered to deep sea, how the phytoplankton community composition shifts, and if/when zooplankton respond to increase in phytoplankton What a...

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  • December 31, 2024
  • 8
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

Subjects

  • ocean 102
  • ocean 102 exam 4
  • ocean 102 exam 4 questions and correct answers
  • what is unclear about carbon limitation
  • what are the two pathways to sinking carbon

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  • Ocean 102
  • Ocean 102

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Ocean 102 Exam 4 Questions and
Correct Answers Already Passed

What is unclear about carbon limitation? - Answer-How much carbon is transported and
sequestered to deep sea, how the phytoplankton community composition shifts, and
if/when zooplankton respond to increase in phytoplankton

What are the two pathways to sinking carbon? - Answer-the surface food web and
sinking to depths

What is the sinkage of carbon dependent on? - Answer-phytoplankton size and type
and the zooplankton response

What are some benefits to fertilizing the oceans? - Answer-remove atmospheric CO2,
low cost, boost the food web, money (sell emissions credits, investments)

What does Planktos Corporation do? - Answer-sells shares to finance fertilization to
generate "carbon offsets"; currently charged with 10 environmental violations

What is the Climos Corporation doing? - Answer-exploring various ways for naturally
removing large amounts of CO2 from the atmosphere

What is the Ocean Nourishment Company doing? - Answer-finding a solution to the
increasing climatic instability and to an emerging crisis in global food security, Blue
Carbon technology, mimicking upwelling, potential reversal of ocean acidification, and
stimulation of the base of the marine food web

What is Blue Carbon technology? - Answer-delivers controlled amounts of missing
macronutrients to the open ocean in order to enhance biological productivity and
sequester carbon while growing food

Is fertilization worth it? - Answer-there is not enough export (eaten/recycled in surface
waters), and there are unknown side effects (production of DMS, clouds, and cooling,
disruption of the food chain, stimulation of HABs, and the creation of anoxic deep
waters

Fertilization and hypoxic zones - Answer-decomposition and decay uses oxygen,
bottom water and sediments become oxygen depleted, organisms that cannot avoid
these areas die, anoxic waters mix upward killing organisms

, What is the EEZ? - Answer-an exclusive economic zone; a seazone over which a state
has special rights over the exploration and use of marine resources

How far is an EEZ? - Answer-from sea edge to 200 nautical miles out

What was the 1982 Law of the Sea Convention's purpose? - Answer-to protect and
preserve the marine environment, and to take all measures to reduce and control
pollution from all sources

Can iron fertilization be regarded as pollution? - Answer-yes

Arguments for fertilization - Answer-it is a responsibility, not just an opportunity

Arguments against fertilization - Answer-it is meager, temporary, and unverified

What does the middle ground say about fertilization? - Answer-experiments are our best
hope

What does desalinization do? - Answer-removes salts and minerals from water for
human consumption and the irrigation of crops

How can we utilize the oceans energy? - Answer-wind, waves, tides, temperature, and
current

What is an offshore source of wind energy? - Answer-an indirect form of solar energy,
wind moves the blades and turbine to generate electricity; very expensive

What are some pros to offshore wind energy? - Answer-there are stronger winds over
the ocean, it is less visible and less noise, and it could be designed to act as artificial
reefs

What are some cons to offshore wind energy? - Answer-it needs to be in shallow water
(close to shores), disturbance of seabeds (habitat destruction), noise pollution, and
winds are not predictable

What is a wave? - Answer-a disturbance that propagates through space and time,
usually transferring energy

Waves are characterized by: - Answer-wave height (H), wave length (L), and period (T)

What is a wave period? - Answer-the time interval between the arrival of consecutive
crests/troughs at a stationary point


What does the IPCC predict about CO2 in the atmosphere? - Answer-changes in
precipitation patterns, increase in duration and frequency of natural disasters, increase
in disease in death

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