Why is it important to understand the challenges immigrants face?

So you can show empathy to people that have experienced this and be able to respect other people and the challenges they face.

I hope this helps sorry if it isnt good

answer: the time zones used to be whatever the local authority wanted them to be. one town might have 6am whenever the sun came up and another town had 6am 10 minutes later.  

the trains had a hard time when their orders said to be at a certain point at 6am.  

6am, but who's 6am.  

the railroads got together and set the time zones more or less along the longitude lines across the country.

explanation:

small european communities with shared traditions consolidated into large new states (apex)