Samuel morse spark a revolution in communications which statements describe one of morses contributions -he devised a code of dots and dashes for sending messages over the wire -he invented the electric telegraph that transmitted information instantaneously -he developed the semaphore system, there by revolutionizing communications -telegraph wires spread across the continent by following railroad tracks west -the first telegraph ran from philadelphia, pennsylvania, to new york

Samuel Morse (1791 - 1872) is an American inventor and painter. He was known for the invention of the electric telegraph, and improved telegraphic traffic by adding a relay at certain length intervals and thus enabled the transmission of signals over long distances. He also invented the dots and dashes code for the current transmission of the message, by which the message would be sent encrypted. In this way, the sending of the message has become instantaneous and possible over long distances.

Answers are: A. B. D.

the causes of the dust bowls were severe droughts,   lands became dry and hard, temperature was higher than usual, hot and dry conditions killed crops, high winds. because of those factors, the winds kicked up dry soil and created clouds of dust.

the correct statement is letter a.   according to the mandate of heaven, kings were considered godlike beings, so they could do as they .

the mandate of heaven is a chinese political and religious ideology used since ancient times to justify the rule of the king or emperor of china, that has been in place since the zhou until the dynasty system ended. it has been created to justify the zhou as the main power of the region. in order to keep harmony, the ruler has to make what he wants and what people want. he had to make good choices to satisfy the people and then they will be happy and keep you in power.