The diagram below is a schematic view of the bessemer converter invented in 1855. which sentence describes the way in which this object was used?
a. water is pumped into the chamber to convert sand and stone to concrete.
b. air is blown into the chamber to convert pig iron to steel
c. oil is circulated around the chamber and converted into gasoline
d. wood is placed in the chamber and converted to charcoal

although the crusades failed to capture jerusalem, they had several major impacts on western europe. they increased the authority of the king: sometimes nobles died in battle without leaving an heir in which case the king got their land. kings passed taxes to pay for the crusades.

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

cruel, heartless

explanation: