Wednesday
December 17, 2014

Homework Help: science

Posted by emily on Thursday, April 9, 2009 at 8:42am.

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!!

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Science - Which fact provides the best evidence for the scientific theory of the...
Science - What process involves the comparison of rock layers with others in a ...
Science- Radioactive Dating - Which of the following statements about ...
Science-Ms.Sue - Very few fossils of jellyfish or their close relatives have ...
Chemistry - What is the famous isotope used in archeological dating? carbon 12 I...
Science questions - A few questions I have about darwin and evolution/fossils. ...
earth science - what radioactive isotope would be most useful in dating a ...
science - Scientists debate about the use of fossils as a tool to determine ...
Science - On the main sequence, what type will have life spans of about ten ...
Geology - Scientists debate about the use of fossils as a tool to determine ...

Search
Members