Asked by emily

ok i have a couple questions.
1. How has life changed throughout Earth's history?
2.What are three things that fossils tell us about earth's past?
3.What is radioactive dating? how do scientists use parent and daughter elements to determine the age of a fossil?
4.What is relative time/age? What are examples of relative time?
5.How do fossils form? Where are fossils generally found?
6.How is Earth today different (2 details) than Earth during the Precambrian Era?
7.What is and index fossil? How does an index fossil relate to the law of superposition?

Thank you for your help!!
Answered by Writeacher
Please note that <b>we don't do students' homework</b> for them. Be sure to go back into your textbook or use a good search engine. http://hanlib.sou.edu/searchtools/

Once <b>YOU</b> have come up with attempted answers to <b>YOUR</b> questions, please re-post and let us know what you think. Then someone here will be happy to comment on your thinking.
Answered by emily
I can't find them and it's not homework.
Answered by emily
Can you please help me!!!
Answered by Writeacher
1. Go to http://www.google.com

2. Enter these search terms, one set at a time; then read the search results until you find your answers.

<b>How has life changed throughout Earth's history

three things that fossils tell us about earth's past

radioactive dating

parent and daughter elements to determine the age of a fossil</b>

etc.
Answered by emily
ok thank you!!!
Answered by ef
dc
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