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Author Question: What instrument used during the early part of the twentieth century improved the accuracy of ocean ... (Read 79 times)

viki

  • Hero Member
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  • Posts: 525
on: Aug 22, 2018

What instrument used during the early part of the twentieth century improved the accuracy of ocean depth
  measurements compared to the rope and weight?
  a. Remotely operated underwater vehicle
  b. Acoustic Doppler current profiler
  c. Satellite
  d. Autonomous underwater vehicle
  e. Echo sounder



Question 2

What explorers expeditions used rope with a weight attached to determine ocean depths?
  a. Eratosthenes
  b. Ferdinand Magellan
  c. Sir James Clark Ross
  d. Christopher Columbus
  e. James Cook



Gabe

  • Sr. Member
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  • Posts: 321
Reply #1 on: Aug 22, 2018
Answer to Question 1

e

Answer to Question 2

c


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