[Answered] Some lava flows show a pattern of columns bounded by fractures. These columns are usually ...

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P68T

Hero Member
Posts: 509

on: Jul 13, 2018

Some lava flows show a pattern of columns bounded by fractures. These columns are usually ____-sided.
A)three
B)six
C)eight
D)twelve
E)twenty

Question 2

What does the appearance of red beds in the geologic record indicate about the atmosphere?

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ryrychapman11

Sr. Member
Posts: 334

Reply #1 on: Jul 13, 2018

Answer to Question 1

B

Answer to Question 2

The atmosphere was oxidizing.

P68T

Member
Posts: 509

Reply 2 on: Jul 13, 2018

Great answer, keep it coming

nanny

Member
Posts: 313

Reply 3 on: Yesterday

Excellent

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