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Author Question: What are the relative ages of the heavily cratered Southern highlands and the smooth Northern plains ... (Read 100 times)

RYAN BANYAN

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on: Jul 27, 2018
What are the relative ages of the heavily cratered Southern highlands and the smooth Northern plains of Mars?
 
  A) the highlands and the plains are the same age
  B) it is impossible to tell unless we know the specific geological processes that occurred in each hemisphere
  C) the plains are older than the highlands
  D) the highlands are older than the plains

Question 2

The semi-major axis, a, of an elliptical planetary orbit is equal to the
 
  A) width of the ellipse
  B) distance between the planet and the Sun at perihelion
  C) average distance between the planet and the Sun
  D) distance between the planets and the Sun at aphelion


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fur

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

D

Answer to Question 2

C


RYAN BANYAN

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Reply 2 on: Jul 27, 2018
Thanks for the timely response, appreciate it

emsimon14

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Reply 3 on: Yesterday
:D TYSM

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