Mar sci ocean floor/tect/chem. notes

.1 The crust under a continental shelf is composed of:

2. Remotely-Operated Vehicles (ROVs) used for deep-sea work have the advantage of being _________ than are people-carrying vehicles.

.3 Continental shelves are primarily shaped when:

4. A flat-topped seamount is called a:

5A continental rise is made of sediment primarily from:

6If the ocean evaporated, Earth's most obvious feature would be:

.7 The superheated water associated with hydrothermal vents is moved by:

.8 The deepest places on Earth are:

9 Submarine canyons are most often found on:

10 Transform faults are fractures along which lithospheric plates move:

11 Hydrogen bonds are:

12 Ice is_________ dense than water

13 Which atom(s) in a water molecule usually have a slight positive charge?

14 In addition to mixing in from the air, oxygen enters seawater:

15 The major pH-buffering agents in the ocean are:

16 The average salinity of the world's oceans is about (%o = parts per thousand)

17 Is nitrogen is present in a higher percentage than oxygen or carbon dioxide

18 . In iron deficient regions, adding iron to the oceans might reduce global warming by:

19. How is longititude and latitude measured?

20. What is the use of RADAR. LORAN, and GPS?

21. Describe/name the features of the ocean floor?

22. What types of reefs form around islands?

23. Why do trenches form?

24. How was the sea level different 15,000 years ago? Why?

25. What force moves the plates?

26. What evidence led to the acceptance of the theory of plate tectonics/sea-floor spreading?

27. What is a hot spot?

28. What is a hydrothermal vent? Of what importance are they?

29. The most important physical factor limiting the distribution of ocean life is

30. What is compensation depth?

31. What are the sources of salts in the sea?

32.How does hydrogen bonding increase waters ability to moderate ocean temperature?

Draw a water molecule and list the characteristics....