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Author Question: The two most important processes in heating the interiors of the terrestrial worlds are ________. ... (Read 49 times)

jlmhmf

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on: Jul 27, 2018
The two most important processes in heating the interiors of the terrestrial worlds are ________.
 
  A) (1 ) volcanism; (2 ) tectonics
  B) (1 ) heat from convection; (2 ) heat from thermal radiation
  C) (1 ) heat deposited by the process of formation; (2 ) heat that came from the gravitational potential energy of incoming planetesimals
  D) (1 ) heat deposited by the process of formation; (2 ) heat released by radioactive decay

Question 2

Which of the following is not evidence for dark matter?
 
  A) gravitational lensing around galaxy clusters
  B) X-ray observations of hot gas in galaxy clusters
  C) the broad absorption lines found in the spectra of elliptical galaxies
  D) the flat rotation curves of spiral galaxies
  E) the expansion of the universe


Sarahjh

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Reply #1 on: Jul 27, 2018
Answer to Question 1

D

Answer to Question 2

E


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