Answer:
Perhaps Curley's wife realizes that just like the puppy, people are insignificant. Curley's wife probably feels as if just like the puppy, the men on the ranch, and possibly herself, are disposable. Or there are a bunch of men in the world, just like mutts. Once one goes away there is always another or when one is useless there is always another.
To become invalid
this word is used sometimes as “The milk expires 4/6/20” so basically it’s “The milk is invalid” or “The milk will be invalid 4/6/20”
b.)Subject: A little dog is taken into an abusive home.
d.)Theme: Those who are abused learn to abuse the weak.
We know the dog is taken into an abusive home because in the passage it says the father "came home and held carnival with the cooking utensils, the furniture and his wife." It goes on to tell how when the boy and dog came home the father "knocked the dog down with a heavy coffee-pot". We also see the theme of "those who are abused learn to abuse the weak" when the son of the abusive father hits the dog repeatedly.
