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Author Question: Valles Marineris is a long valley on Mars believed to resemble the rift valleys of eastern Africa. ... (Read 67 times)

CORALGRILL2014

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on: Jul 27, 2018
Valles Marineris is a long valley on Mars believed to resemble the rift valleys of eastern Africa.
 
  Indicate whether the statement is true or false

Question 2

What is the major observational difference between a Seyfert galaxy and a normal spiral galaxy?
 
  a. Normal spiral galaxies usually have shorter spiral arms.
  b. Normal spiral galaxies never contain a supermassive black hole at their center.
  c. The central region of a Seyfert galaxy is much brighter.
  d. Seyfert galaxies don't contain any star formation.


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coreycathey

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

T

Answer to Question 2

C


CORALGRILL2014

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Reply 2 on: Jul 27, 2018
Excellent

vickybb89

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Reply 3 on: Yesterday
Wow, this really help

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