Tuesday
March 31, 2015

Homework Help: science

Posted by Briana on Monday, December 1, 2008 at 7:48pm.

I have a picture that shows what scientists think parts of North America looked like 300 million yrs ago. ie, trees, plants , insects, rocks. How do scientists know what North America looked like so long ago, if there were no people around to see it?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Science - The fit of the coastlines of which of the following continents led ...
Science - What would happen if the temperature of the Tundra increased? Like to ...
Social Studies 6th grade - Why don't scientists agree on when and how the first ...
HELP! - Scientists throrize that the continents are still drifting apart. What ...
social studies - asia and north america are seperated by what water may i ask ...
8th grade science - Q: A person living in North America will be able to see 15 ...
geography - Can you check my answers please? 1. Describe North Dakota's ...
science - I have a US History project that's due... I have to make a map of ...
science - Why do scientists use models? a. Scientists use models to learn about ...
social studies - Humans in North America up to 1492,groups living in the same ...

Members