In the U. S. in the 1830s, miles of track had been laid. By the 1860s, miles of track had been laid.

a.40,000 and 30

b.30,000 and 30

c.40 and 30,000

d.400 and 40,000
i think it's c for anyone who needs it but if i'm wrong correct me

the growing interconnectedness of the world through communication, trade, and the exchange of ideas is an important theme in the history of the 20th and 21st centuries.

explanation:

a) "how old man winter was driven back " and "ormuzd and arimanes"

hope it

most people such as me i dont have one but if   i did i would mostly likely quit my job if the economy was down cylcling that means less money if you go to a bigger job that is prospering you can earn more wage and still be able to feed yourself or why you work all people want more money then they have guarteed most people like me would switch jobs for a better one with higher wage

i believe it was ccc - civilian conservation corps