Question

5. The Galapagos Rift is between
A. the Pacific Plate and the Cocos Plate
B. Cocos Plate and the Nazca Plate
C. the Cocos Plate and the South American Plate
D. the South American Plate and the Caribbean Plate

6. Water temperature across most of the ocean floor is
A. -6 degrees C
B. 0 degrees C
C. 4 degrees C
D. 380 degrees C

7. Magma beneath oceanic ridges heats water to
A. 100 degrees C
B. 600 degrees C
C. 700 degrees C
D. 1,250 degrees C

8. Water flowing into and out of hydrothermal vents recycles all ocean water about
A. every 100 years
B. every 700,000 years
C. every 7 million years
D. every 16 million years

9. Oxygen
A. binds electrons more tightly than any other atom
B. has an electronegativity of 3.5
C. as O₂ is abundant in the interior of deep sea vents
D. all of the above

10. Deep sea vent animal communities
A. depend on hydrogen sulfide for energy
B. depend on chemoautolithotrophs for food
C. contain more than 300 different species
D. all of the above

Answer 1

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