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Author Question: The Earth's circumference was first determined by: A) Aristotle using lunar eclipses. B) ... (Read 98 times)

jeatrice

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on: Jul 27, 2018
The Earth's circumference was first determined by:
 
  A) Aristotle using lunar eclipses.
  B) Pythagoras with geometry.
  C) Hipparchus with stellar parallaxes.
  D) Erastothenes with solstice shadows.
  E) Aristarchus with first and third quarter Moon timings.

Question 2

Galaxies contain at most one supermassive black hole.
 
  Indicate whether the statement is true or false


chloejackso

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

D

Answer to Question 2

FALSE


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jeatrice

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Reply #2 on: Jul 27, 2018
Thank you!


chloejackso

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Reply #3 on: Jul 27, 2018
Always glad to help...


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