which best describes the impact of railroad expansion on the steel industry?\nit did not affect the demand…

which best describes the impact of railroad expansion on the steel industry?\nit did not affect the demand for steel at all.\nit decreased the demand for steel since railroad tracks were build from wood.\nit increased the demand for steel since steel was used to make railcars and tracks.\nit decreased the demand for steel since the railroad was generally not used to transport steel.

which best describes the impact of railroad expansion on the steel industry?\nit did not affect the demand for steel at all.\nit decreased the demand for steel since railroad tracks were build from wood.\nit increased the demand for steel since steel was used to make railcars and tracks.\nit decreased the demand for steel since the railroad was generally not used to transport steel.

Answer

Brief Explanations:

Steel is used to make rail - cars and tracks. When railroads expand, more steel is needed for construction of new tracks and rail - cars. So, it increases the demand for steel.

Answer:

It increased the demand for steel since steel was used to make railcars and tracks.