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The top documents tagged [greatest expanse of]
Mangrove Booklet
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Chapter+12+geologic+time
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Warm Up 1/10/08 1. 1. Fossils are the ____. a. oldest layers of rock in a region b. objects that people of long ago left behind as artifacts c. living
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NOTE CHECK What is the difference between relative and absolute dating? What is superposition? What era did humans first appear?
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Unit 2. Record of geologic events and major changes in life forms (mass extinction or new life) By studying the characteristics of rocks and the fossils,
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Geologic Time Chapter 8. Determining geological ages Relative age dates – placing rocks and geologic events in their proper sequence Numerical dates –
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Warm Up 1) 1) Atoms with the same atomic number but different mass numbers are called ____. a.ionsc. neutrons b.protonsd. isotopes 2) 2) Radiocarbon dating
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