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bobbysung

Hero Member
Posts: 519

on: Aug 7, 2018

If we use a 24-hour day to represent Earth's history, humans would have existed for the last:
a. 1 minute.
b. 1 hour.
c. 2 hours.
d. 5 hours.
e. 12 hours.

Question 2

The boundaries between the distinct layers found in many sedimentary rocks are called:
a. foliation.
b. regolith.
c. outcrops.
d. rock cycles.
e. bedding planes.

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anoriega3

Sr. Member
Posts: 323

Reply #1 on: Aug 7, 2018

Answer to Question 1

A

Answer to Question 2

E

bobbysung

Hero Member
Posts: 519

Reply #2 on: Aug 7, 2018

Thanks

anoriega3

Sr. Member
Posts: 323

Reply #3 on: Aug 7, 2018

Welcome

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Author Question: If we use a 24-hour day to represent Earth's history, humans would have existed for the last: a. 1 ... (Read 116 times)

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