stormserena
stormserena stormserena
  • 22-12-2018
  • History
contestada

please help me

What made the railroad expansion possible because thousands of miles of track were made of this?

A. oil

B. copper

C. gold

D. steel

Respuesta :

BluSeaa
BluSeaa BluSeaa
  • 22-08-2019

The answer is D. Steel.

Answer Link

Otras preguntas

Smaller cells have a(n) _________ surface area to volume ratio. a. larger b. smaller c. equal d. none of the above
Which organelle can be compared to a security guard who decides whom may enter a building and whom may not?
Anaerobic respiration produces a maximum of ______ ATP per glucose.
What is the solution to the compound inequality?
Birds and reptiles conduct _____ fertilization and lay the eggs outside of the body. a. internal b. external
Prions are proteins that act as an infectious agent. They cause a variety of diseases, including "mad cow" disease. Prions cannot produce more potions on their
The process of ___________________leads to the formation of new species by ___________________.
Which organs are responsible for producing fluid to give sperm nourishment and motility?
Which enzyme is responsible for facilitating the hydrogen bonding between nucleotides in a new DNA molecule?
Which element is classified as a noble gas at STP? hydrogen oxygen neon nitrogen