Answer:
It is a complicated machine to build
The transition which could replace the word thus in this sentence is definitely consequently.
Workers bravely set dangerous explosives in the mountains by hand to make passes for railroads, and consequently hundreds lost their lives.
Answer:
Hmmm
Explanation:
I saw this from a brainly question so I may be wrong:
the answer is self-determination
source: brainly.com/question/22891885
Hope this helped!