The transcontinental railroads that opened up the west had a devastating effect on

Although the Transcontinental railroad transformed American transport, had also a devastating effect on Native Americans and also Chinese workers who were killed as a result of explosions, snow slides and other accidents.

But especially on Native Americans due they gave away the rights to their land to the federal government in deceptive treaties they didn't imagined would destroy their traditional hunting grounds and revered domains by such a massive and disruptive system.

biological/genetic factors means they were born or predisposed to have something. nothing can really change it, and you can't really do much to "fix" it. it isn't something learned

these are the biological factors:

adrian is relatively tall and he is on the basketball team

(adrian can't ever stop being tall or force himself to be tall. likely one or both of his parents are tall as well and they passed on the tall gene. he probably does basketball because he is tall)

the rest are environmental/cultural factors. these are things that are taught to us. for example, cynthia wasn't born saving pocket money, her family most likely taught her this (environmental factor)

hope this !

i am 99% sure that the increase of goods was because of nafta nafta stands for the north american free trade agreement to lift tariffs