After Germany’s unification in 1871, industrialization accelerated and surpassed the US becoming first in steel production.
industrialization continued mainly in the west.
workers for industrial jobs were difficult to find.
constructed vast networks of railroads.

a. the astrolabe could determine the correct latitudinal location of the ship

increases in demand are shown by a shift to the right in the demand curve. this could be caused by a number of factors, including a rise in income, a rise in the price of a substitute or a fall in the price of a complement.

which the answer is:

b