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Home Q & A Board Science-Related Homework Help Physics Astronomy
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vicmillz vicmillz
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6 years ago
Nebular theory predicts that other solar systems that formed in the same way should also have 8 planets.
 
  Indicate whether the statement is true or false

Question 2

If the hypothesis tracing the extinction of the dinosaurs to an impact is correct, the dinosaurs died off largely because
 
  A) of injuries suffered from direct hits of pieces of the asteroid or comet.
  B) radiation from iridium in the asteroid caused the dinosaurs to die of cancer.
  C) of global climate effects initiated by dust and smoke that entered the atmosphere after the impact.
  D) the impact caused massive earthquakes worldwide.

Question 3

There are three classes of asteroids, based on their surface reflectivities. Name them, and describe their composition in terms of the differentiation process.
 
  What will be an ideal response?

Question 4

How did Ptolemy explain the retrograde motion of Mars?
 
  What will be an ideal response?
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m0502428m0502428
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6 years ago
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vicmillz Author
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#2
6 years ago
Extremely helpful
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#3
6 years ago
Cool, thanks for the positive feedback
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