What natural element is one of the best preservers of prehistoric life?
What clues in fossils help scientists identify different ice ages?

In japan, the had nearly total power, but he was also assisted by

List 2 differences between the confederate and us constitution

The telegraph, the transatlantic telegraph cable, and the telephone were important to businesses after 1850 because of a. they created a system for developing new inventions. b. they filled a need that other inventions of the day could not. c. they attracted investors and created the stock market. d. they made picture-taking a popular american pastime.