ES154 Homework 11
1. How is scuba diving an ocean resource? (approximately how much money is
spent, who benefits and where?)
-$5-10 billion annually
-equipment, training, travel
2. Besides economic benefits, in what other way can scuba divin
WHAT IS A HURRICANE
-a huge, low pressure tropical storm with winds spiraling inwards and
upwards at speeds ranging from 75 200 mph
-Hurricanes originate in the Atlantic basin, which
1. Approximately how much oil is produced per day offshore in the US Gulf Coast? (barrels
How much is total oil production worldwide? (in Barrels/day)
1.5 million barrels/day = US Gulf Coast
90 million barrels/day = total world
1. What are the relative proportions of oceans versus continents on the Earths surface?
Ocean = 70.8% of Earths surface area, land = 29.2% of Earths surface area
2. What are six oceanic provinces? (be able to sketch these)
1. What are the four main features of submarine hydrothermal vent fluids? (temperature,
high temperature (350oC), very acidic, reducing (hydrogen sulfide), metal rich
2. How does seawater change into hydrothermal fluids
Ch 2: selections
Lecture 3: Production possibilities
Econ 102: Principles of Macroeconomics
The art of modeling: ceteris paribus and
2. The production possibilities frontier
a. Technical Efficiency
Earth Sci 154 Homework Questions 1.
Give short answers for questions, but be complete. Lists are OK in some cases. Phrases
are OK rather than long sentences, no need to repeat the question in the answer.
Print out your answers and bring a hard copy to the
.Four Fish book, part 1. SALMON Questions
Answer questions in your own words, dont just copy text from the book.
Be concise, but complete. In some cases short answers or lists may be OK.
1.What is the status of the wild Atlantic salmon population today?
ES 154 Homework 8.
PRINT AND HAND IN AT NEXT CLASS
1. What are four types of unsustainable fishing techniques? (those used in
purse seining; gillnetting; longlining; trawling
2. What are the general trends of total fish taken from
Earth 154 Homework 7; STUDY QUESTIONS ONLY, NOT TO HAND IN
1.What are three advantages of energy from waves and tides? What are three
potential negative effects?
Clean energy; renewable; free once infrastructure is installed
Acoustic output; corrosion; di
ES154 STUDY QUESTIONS 6 FOR STUDY ONLY NOT TO HAND IN
1. A. What are gas hydrates?
A crystalline solids that looks like ice; water molecules form a cage-like
structure around smaller guest molecules like methane
B. What is the main gas in gas hydrates?
EarthSci 154 Homework 5.
Print and bring to next class
1. What are the trends in Brazilian offshore oil production? A. specifically where is the
oil?- ocean province, relative water depth, geologic trap). B. What is the relative size of
these deposits? C.
EarthSci 154 Homework 4.
Print out and bring to next class
1. How do Petroleum deposits form? Specifically:
A.What is the source of organic matter? B. how does this become petroleum: i. how is
this chemically transformed, and ii. what two factors drive th
ES154 Homework 3.
Print out, bring to next Class, Correct in class and hand in.
1. A. What are two ways that microbes (bacteria) are related to other organisms at
Bacteria convert carbon into organic molecules which is food to other an
ES154 Homework 2. Print out answers and bring to class Tuesday. We will go over these
and you can correct answers with pen or pencil in class and then hand in homework.
Short answers are OK, in some cases a simple list is OK (e.g., question 1, 2 etc),
1. Where do manganese deposits (nodules) form on the seafloor (what ocean province)?
What valuable metals and other elements are present in these and where do these come
from? What is the status of these as an ocean resource? What are
1. How do Petroleum deposits form?
A.What is the source of organic matter? B. how does this become petroleum (how is this
chemically transformed, what drives these reactions)? C. How does it become gas?
A. Soure rock: shallow burial- e
1. What are the main differences between offshore rigs in shallow water versus those in
Shallow oil rigs fixed platforms, fixed structures
Deep water oil rigs floating, semi-submersibles, Spar platforms moored (anchored) to
Main Effects of Global Warming
Rise in sea level
2 major causes
Ex: mountain glaciers and polar
in ocean temperatures
Main Effects of Global Warming
Rise in sea level
Threats to coastal communities
40% of the world's p
ES154 Homework 2. Due in ctools/Dropbox before Monday class
1. A. How do the East Pacific Rise and the Mid-Atlantic Ridge differ?
i. overall bathymetric profile across the rise or ridge,
ii. Lava types
B. Why these differences?
GS154F11 Study Guide
proportions of oceans vs continents on earth 30% land and 70% water
What controls the overall depth of the ocean basins?
Age and density control the overall depth of the ocean basins.
Aging of crust, gets cooler, denser, contracts a