assignment 6

Question 1

Which ocean basin is the largest single geographic feature on Earth?

a. Atlantic
b. Pacific
c. Arctic
d. Indian

Answer 1

pacific

Question 2

Flat-topped seamounts that have eroded over time are called:

a. Abyssal plains
b. Guyots
c. Sea plateaus
d. None of the above

Answer 2

guyots

Question 3

Oceanic (mid-ocean) ridges are associated with ______ plate boundaries.

a. Convergent
b. Divergent
c. Transform
d. All of the above

Answer 3

divergent

Question 4

The dissolution of which compound leads to the acidification of the ocean?

a. NaCl
b. H2O
c. CO2
d. MgCl2

Answer 4

c. CO2

Question 5

Which of the following terms describes organisms that inhabit the seafloor?

a. Plankton
b. Nekton
c. Benthos
d. Phytoplankton

Answer 5

benthos

Question 6

The density of seawater increases with _______ temperature and _______ salinity.

a. Increasing; decreasing
b. Decreasing; increasing
c. Increasing; increasing
d. Decreasing; decreasing

Answer 6

b. decreasing, increasing

Question 7

The study of the depth to the ocean floor is called:

a. Seismology
b. Topography
c. Bathymetry
d. Plate tectonics

Answer 7

bathymetry

Question 8

Which ocean layer accounts for the majority of ocean water?

a. Shallow surface mixed zone
b. Transition zone
c. Deep cold zone
d. Pycnocline

Answer 8

deep cold zone