Author Question: The composition of Mercury's crust is: A) deficient in volatile compounds that contain elements ... (Read 38 times)

ericka1

  • Hero Member
  • *****
  • Posts: 544
The composition of Mercury's crust is:
 
  A) deficient in volatile compounds that contain elements such as sulfur and potassium.
  B) consistent with material from the solar wind, indicating that Mercury has collected material over the last few billion years.
  C) similar to the crust of the other terrestrial planets.
  D) nearly identical to Mercury's mantle material.

Question 2

Explain how the eccentricity describes the shape of an ellipse.
 
  What will be an ideal response?



lucas dlamini

  • Sr. Member
  • ****
  • Posts: 327
Answer to Question 1

C

Answer to Question 2

The higher the eccentricity, the more elongated the oval; a circle has an eccentricity of zero, while very stretched out comet orbits approach an eccentricity of one.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.

Did you know?

Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.

Did you know?

There are over 65,000 known species of protozoa. About 10,000 species are parasitic.

Did you know?

Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.

Did you know?

Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.

For a complete list of videos, visit our video library