Thomas Edison created the first real electricity company, but it had one big limitation--it used direct-current (DC) which had a very limited range. In 1886, George Westinghouse developed an alternating-current (AC) system which made _____-distance transmission of electricity possible.
Fill in the blank(s) with the appropriate word(s).
Answer: long
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What are the political consequences of conglomeration?
What will be an ideal response?
In sixteenth-century England, Parliament could oppose the monarchy by __________.
A) joining the Church of England B) breaking from the Catholic Church C) rejecting the Magna Carta D) refusing to approve special taxes
About how long did the Han dynasty last?
A) 20 years B) 50 years C) 400 years D) 100 years
All of the following were factors in nearly doubling Europe's population by the High Middle Ages EXCEPT
A. a cessation of Viking invasions. B. increased agricultural output due to the three-field rotation system. C. use of wind- and watermills. D. expansion of arable land through deforestation. E. importation of rice from Asia as a staple crop.