Author Question: In the mid-twentieth century, oceanographers used what devices to map the ocean floor? a. ... (Read 47 times)

beccaep

  • Hero Member
  • *****
  • Posts: 535

In the mid-twentieth century, oceanographers used what devices to map the ocean floor?
  a. Seismographs
  b. Convective current profilers
  c. Isostatic sounders
  d. Conductive detectors
  e. Echo sounders



Question 2

Oceanographers and seismologists further explored the theory of continental drift during the early- to mid-twentieth
  century by correlating patterns of earthquakes and ____.
  a. volcanoes
  b. fault lines
  c. isostatic equilibrium
  d. tectonic plates
  e. convection currents




aprice35067

  • Sr. Member
  • ****
  • Posts: 337
Answer to Question 1

e

Answer to Question 2

a



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates’s recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

Your heart beats over 36 million times a year.

Did you know?

It is difficult to obtain enough calcium without consuming milk or other dairy foods.

Did you know?

Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

For a complete list of videos, visit our video library