This topic contains a solution. Click here to go to the answer

Author Question: Why does the Moon lack a true atmosphere? What will be an ideal ... (Read 42 times)

Starlight

  • Hero Member
  • *****
  • Posts: 567
Why does the Moon lack a true atmosphere?
 
  What will be an ideal response?

Question 2

If the density of the universe is at the critical density, this means that:
 
  A) the universe is expanding at a rate equal to the escape speed of the universe.
  B) the universe is expanding at a rate less than the escape speed of the universe.
  C) the universe is expanding at a rate greater than the escape speed of the universe.
  D) the universe is expanding at a rate equal to the speed of light.
  E) the universe is expanding at a rate greater than the speed of light.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Anonymous

  • Sr. Member
  • ****
  • Posts: 317
Answer to Question 1

Its atmosphere escaped into space due to the low surface gravity of the Moon, although there is atenuous atmosphere of magnesium, potassium, and sodium kicked up by the solar wind.

Answer to Question 2

A



Starlight

  • Hero Member
  • *****
  • Posts: 567

Anonymous

  • Sr. Member
  • ****
  • Posts: 317

 

Did you know?

Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.

Did you know?

Approximately 25% of all reported medication errors result from some kind of name confusion.

Did you know?

Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.

Did you know?

Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.

Did you know?

Atropine was named after the Greek goddess Atropos, the oldest and ugliest of the three sisters known as the Fates, who controlled the destiny of men.

For a complete list of videos, visit our video library