He wanted to prove to everyone that he could survive on his own so he show everyone was wrong and he didn’t wanna die
Probably kg, it wouldn't be sensible to weigh it otherwise:
3000g
3kg
0.003 tons
Answer: It explains why Bob does not recognize his friend Jimmy when he talks to the policeman.
In the story, Bob walks along with the man who claims to be Jimmy for a while, and they even start to share experiences, before he realizes that man is not actually Jimmy. Bob only notices it when they step into an area that has better light and that allows him to examine the stranger's face more carefully.
The weather also has a secondary purpose, which is that of setting a sad, bleak tone to the story, foreshadowing a tragic ending.
They all have different names because they are different a characters.