Exam (elaborations)
Intro to Marine Science final exam questions and answers
- Course
- Institution
Intro to Marine Science final exam questions and answers
[Show more]
Content preview
Intro to Marine Science final examquestions and answers
What percentage of Earth i covered with oceans? - Answer -70.8 %
List the major oceans found on our planet - Answer -Artic, Atlantic, Indian, Pacific, and
Southern
What percentage of all water on planet Earth is oceanic? - Answer -97.2%
The smallest of the major oceans is - Answer -The Artic
The study of waves, tides, currents, weather, and climates are all a function of which
major discipline of oceanography? - Answer -Physical Oceanography
The study of marine life and its aspects is - Answer -Oceanography
What is the deepest part of Earth called, and how deep is it? - Answer -The Mariana
Trench at 11,022 meters (36,161 feet)
The first person to be given credit for circumnavigating planet Earth was/is - Answer -
Ferdinand Magellan
Celestial navigation, a fairly accurate circumference of Earth, and the first substantial
role map were all accomplished/produced y which people? - Answer -The Greeks,
Pytheas: reaced Iceland 325 B.C. by celestial navigation; 1st to determine latitude.
Compare continental and oceanic crust - Answer -Oceanic crust underlies ocean
basins, has high density 3.0 g/cm3 (5 Miles)
Continental crust underlies continents, has lower density 2.7/cm (22 Miles)
all major geological features on earth, such as volcanoes, earthquakes, trenches,
mountain ranges, etc., can be explained by what? - Answer -Plate Tectonics
List the evidence for continental drift and/or sea floor spreading - Answer -Magnetic
stripes in ocean floor rock
Earthquake patterns
Measurements of ocean floor rocks
, The study of how chunks of lithosphere float horizontally and interact on top of a plastic
asthenosphere is known as ___________, which can be classified as a field of study
under ______________ oceanography. - Answer -plate tectonics, Marine Geology
List the 3 major types of tectonic plate boundaries - Answer -Divergent (Apart)
Convergent (Together)
Transform (Slide Past)
When an oceanic-continental plate collision occurs, which crust is subducted? - Answer
-Oceanic Crust subducts under continent - ocean crust is more dense,
List the major types of marine sediments - Answer -Lithogenous, Biogenous,
Hydrogenous, and Cosmogenous
Silica-based biogenous sediment is generally found in ____________ water, while
calcium-based sediment is generally found in __________ water. - Answer -sunlit
surface water, cool deep water
A sediment type that has a high content of evoporites, iron, manganese, copper, and
zinc would be considered which type of sediment? - Answer -Hydrogenous
What physical factor has the least influence on the distribution of marine sediments? -
Answer -Neritic
Define and explain hydrothermal vents - Answer -Ocean water that percolates down
through fractures in recently formed ocean floor is heated by underlying magma and
surfaces again through these vents. They are usually located near the axis of spreading
along the mid-ocean ridge.
Aseismic extensions of transform fault lines are known as - Answer -Fracture
Define and explain marine snow - Answer -A shower of organic material falling from
uppers waters to the deep ocean. Biological debris that falls from higher in the water
column is also known as marine snow. Some flakes fall for weeks before finally
reaching the ocean floor.
Most oceanic trenches and geological activity is/are found in which major ocean? -
Answer -Pacific
The transition between the continental crust and oceanic crust is found in where? -
Answer -Continental Rise
How much cosmogenous sediments reach earth's surface each year from outer space?
- Answer -3000,000 tons
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller millyphilip. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $11.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
79271 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now