Question

8 multiple choice 1 point which commodities were linked to the growing railroad industry of the 19th century? gold and silver electricity and oil oil and steel steel and aluminum

Explanation:

To determine the commodities linked to the 19th - century railroad industry, we analyze each option:

• Gold and silver: These were more related to currency and precious - metal trading, not the core of railroad construction and operation.
• Electricity and oil: Electricity was in its early development in the 19th century and not a primary commodity for railroads. Oil was not as crucial for railroads as steel and (to a lesser extent in the 19th century) oil's role was more in the later industrial era for other forms of transportation.
• Oil and steel: Steel was essential for building railroad tracks, and oil (in the form of lubricants and later as a fuel for some railroad - related machinery) became increasingly important. However, steel was the most critical for the physical infrastructure of railroads.
• Steel and aluminum: Aluminum was not widely used in the 19th - century railroad industry as its production was not as advanced or cost - effective for large - scale railroad use.

Steel was a key material for railroad tracks, and oil was used for lubrication and would later be used for fuel - related aspects of railroads. Gold and silver were not directly linked to railroad growth, electricity was not a major commodity for railroads in the 19th century, and aluminum was not widely used in railroads during this time. So the correct option is the one with oil and steel.

Answer:

C. Oil and steel