<span> its A is the answer i think hope it helps </span>
Answer:
Friction between the wheels and track causes energy to leave the system in the form of heat.
Explanation:
Yes! Trains started to be built in 1839 to connect the royal palace of Naples to the seaside. More were built in 1861 to connect from the Alps to Sicily.
Red clouds war began in 1866 all the way to 1868
Answer:
A
Explanation:
They employed small numbers of workers