« previous next »

Author Question: What instrument used during the early part of the twentieth century improved the accuracy of ocean ... (Read 76 times)

viki

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

e

Answer to Question 2

c


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

Did you know?

In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

Did you know?

Human kidneys will clean about 1 million gallons of blood in an average lifetime.

Did you know?

Your heart beats over 36 million times a year.

Did you know?

GI conditions that will keep you out of the U.S. armed services include ulcers, varices, fistulas, esophagitis, gastritis, congenital abnormalities, inflammatory bowel disease, enteritis, colitis, proctitis, duodenal diverticula, malabsorption syndromes, hepatitis, cirrhosis, cysts, abscesses, pancreatitis, polyps, certain hemorrhoids, splenomegaly, hernias, recent abdominal surgery, GI bypass or stomach stapling, and artificial GI openings.

Faith Ringgold, Tar Beach, Part I of the series Woman on a Bridge. Faith Ringgold, Tar Beach, Part I of the series Woman on a Bridge.
Early cities were small economic centers surrounded by walls to keep out enemies. These cities had ... Early cities were small economic centers surrounded by walls to keep out enemies. These cities had ...
Drawing shows what is occurring electrically at each part of the scope pattern. Drawing shows what is occurring electrically at each part of the scope pattern.
How to find the domain and range of a function (Part 1) How to find the domain and range of a function (Part 1)
part a part a
17th Century Physician Examining a Urine Specimen 17th Century Physician Examining a Urine Specimen
Video: Chromosome structural organization/ Mechanisms for chromosome movement Animation

For a complete list of videos, visit our video library