The longest subdivision in geologic time is a(n)
a. epoch
c. century
b. period
d. eon

Afamous line of latitude is the north pole. true or false

Of those who attended the philadelphia convention, which of the following traits would be least likely to be found? a. many were highly educatedb. all were menc. many were from the urban centersd. many came from the western frontiers

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.