oce review

oce review - Introduction, Chapter 1, Chapter 4 (pages...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Introduction, Chapter 1, Chapter 4 (pages 113-115; and 123- 125), and Appendices I, II, and III. 1. Has the chemical composition of ocean water remained constant through geologic time? -Yes. 2. Could the earth’s mantle have produced enough water to fill the oceans? - YES, b/c gases from within earth rose to the surface where they were expelled to from earth's atmosphere 3. What do we call organisms that can make their own food from inorganic carbon sources? - autotrophs 4. What do we call organisms that can break down organic molecules produced by other organisms to release energy? - respiration 5. Why did the separation of the Earth into layers occur? - plate tectonics. 6. What gases did the earth’s early atmosphere (from outgassing) include? - amonia, carbon dioxide, hydrogen, methane 7. How can we use natural radioactive isotopes to determine the age of earth materials? - by comparing the amt of radioactive material and the amount of decay in rocks. 8. What do we call lines on the earth’s grid system that run parallel to each other in an east-west direction and measure locations north or south? -latitude. 9. What is a simple and reliable way to measure latitude? -the sun or the north star. 10. Where is the deepest spot in the world’s ocean? - Mariana Trench 11. What are manganese nodules? - rock consecrations on the sea bottom, mineral resource. 12. What are gas hydrates? - compact chemical structure made of water and natural gas, forming ice 13. Who was the 1 st European explorer to circumnavigate the earth? -   Magellan started, del Cano finished 14. Is population growth linear or exponential? What is the “Rule of 70” for estimating population growth? -exponential. 15. What countries have some of the fastest growing populations in the
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
world? Are some countries losing population? 16. There are 17 “megacities” (greater than 10 million population) in the world today. Most of them (11) are in what region of the world? -Asia 17. What city has the highest population in the world at around 30 million? -Tokyo 18. What are some mineral resources that are currently exploited from the sea bed? - petroleum, sand and gravel, salt What mineral resources may be a future resource? - phosphorite, manganese nodules 19. What is the “Exclusive Economic Zone?” -a coastal zone that is 200 nautical miles wide over which the nation has jurisdiction over. 20. The world fish catch seems to have leveled off at around 80-90 million tons annually in spite of the fact that we have better technology and more ships involved in fishing. Why has this happened? -Overfishing, shark-fining, and trophy fishing
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This document was uploaded on 11/03/2011 for the course OCE 1001 at FSU.

Page1 / 7

oce review - Introduction, Chapter 1, Chapter 4 (pages...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online