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3.1 Deep Time - Answers

Here is the answer guide to the activity from PBS Deep Time given on 3.1 Deep Time Teachers can release these to students using the student access tool. 1. How far back in time does the Deep Time timeline go? 4.6 Billion Year (4,550 MYA) 2. What is the earliest event on the entire timeline? 4,550 mya - Birth of the solar system 3. How long ago did the oceans form? Several million years - 4,200 mya - By about 3,900...

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