This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: What observational evidence supports the idea that Mercury once shrank by some 20 kilometers in ... (Read 86 times)

mikaylakyoung

  • Hero Member
  • *****
  • Posts: 531
on: Jul 27, 2018
What observational evidence supports the idea that Mercury once shrank by some 20 kilometers in radius?
 
  A) the presence of many impact craters
  B) the characteristics of the Caloris Basin
  C) Mercury's unusually high density
  D) the presence of many long, tall cliffs

Question 2

The primary source of the Sun's energy is:
 
  A) oxidation of carbon in the core.
  B) gravitational collapse of the helium coreward.
  C) dark energy.
  D) the strong force fusing hydrogen into helium.
  E) the weak force creating energy from uranium decay.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

onowka

  • Sr. Member
  • ****
  • Posts: 353
Reply #1 on: Jul 27, 2018
Answer to Question 1

D

Answer to Question 2

D


mikaylakyoung

  • Member
  • Posts: 531
Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)

lindahyatt42

  • Member
  • Posts: 322
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Signs and symptoms that may signify an eye tumor include general blurred vision, bulging eye(s), double vision, a sensation of a foreign body in the eye(s), iris defects, limited ability to move the eyelid(s), limited ability to move the eye(s), pain or discomfort in or around the eyes or eyelids, red or pink eyes, white or cloud spots on the eye(s), colored spots on the eyelid(s), swelling around the eyes, swollen eyelid(s), and general vision loss.

Did you know?

Opium has influenced much of the world's most popular literature. The following authors were all opium users, of varying degrees: Lewis Carroll, Charles, Dickens, Arthur Conan Doyle, and Oscar Wilde.

Did you know?

Colchicine is a highly poisonous alkaloid originally extracted from a type of saffron plant that is used mainly to treat gout.

Did you know?

Common abbreviations that cause medication errors include U (unit), mg (milligram), QD (every day), SC (subcutaneous), TIW (three times per week), D/C (discharge or discontinue), HS (at bedtime or "hours of sleep"), cc (cubic centimeters), and AU (each ear).

Did you know?

Inotropic therapy does not have a role in the treatment of most heart failure patients. These drugs can make patients feel and function better but usually do not lengthen the predicted length of their lives.

The Stripping of Mercury’s Mantle The Stripping of Mercury’s Mantle
Mercury experiment Mercury experiment
Jeremy Bentham, A General Idea of a Penitentiary Panopticon, drawn by Willey Reveley. Jeremy Bentham, A General Idea of a Penitentiary Panopticon, drawn by Willey Reveley.
Four kinds of evidence supporting the theory that species evolve. Four kinds of evidence supporting the theory that species evolve.
Continental Drift: An Idea Before Its Time Continental Drift: An Idea Before Its Time
Experimental evidence of cytoplasmic localization in an amphibian oocyte. Experimental evidence of cytoplasmic localization in an amphibian oocyte.
Video: Neural Reflex Arc Animation

For a complete list of videos, visit our video library