What features did Dr. Ballard not encounter during his National Geographic exploration to the mid-ocean ridge?
A) the rift valley
B) faults and fractures
C) lava flow
D) tube worms

Question

Quizplus · Accepted Answer

Dr. Ballard traveled 9100 ft in Alvin to observe the structure of a mid-ocean ridge including the rift valley, fissures, cracks, and faults, and lava flows. Information can be found in the section Insight from A National Geographic Explorer:Dr. Ballard recounts an expedition to a mid-ocean ridge.

What Features Did Dr