How was written communication improved in the late 1800s?

through the telegraph ?
through the pony express?
through the reduced cost of mailing a letter ?

How are diamonds and graphite the same? how are they different? a. both diamonds and graphite are made entirely out of carbon. they are different because the carbon atoms are arranged differently with a more three-dimensional structure in diamonds and flat layers in graphite. b. both diamonds and graphite have atoms that are arranged with flat layers. they are different because only graphite are made entirely out of carbon. c. both diamonds and graphite have atoms that are arranged with three-dimensional structures. they are different because only diamonds are made entirely out of carbon. d. diamonds and graphite have no similarities. they are different because the carbon atoms are arranged differently with a more three-dimensional structure in diamonds and flat layers in graphite.

What form of government is powers of states? first letter of the answer is r.

Choose all that apply. from the lesson, which of the following can lead to an empire's collapse? the forming of other empires internal problems na poor economy no one wants to lead unhappy citizens