Author Question: On a planetary scale, the ocean comprises about ____ of Earth's mass. A) 71 B) 20 C) 8 D) ... (Read 51 times)

saliriagwu

  • Hero Member
  • *****
  • Posts: 537
On a planetary scale, the ocean comprises about ____ of Earth's mass.
 A) 71
  B) 20
  C) 8
  D) 0.02

Question 2

Approximately how much of the world's estimated oil and gas reserves can be found within the sediments of the continental margins?
 A) One-third
  B) One-half
  C) Two-thirds
  D) Three-quarters



al

  • Sr. Member
  • ****
  • Posts: 344
Answer to Question 1

D

Answer to Question 2

C



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Did you know?

Vaccines prevent between 2.5 and 4 million deaths every year.

Did you know?

Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.

Did you know?

During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).

For a complete list of videos, visit our video library