Which word from the conversation best the reader understand the mood of the scene?

Romeo uses sarcasm in his joke made in the first line, therefore, the words that most characterizes the dialogue is 'jest'. 'Jest' could be interpreted as a joke that actually bothers the person receiving the comment.  The entire dialogue revolves around the first line that was a 'jest', hence, that is the keyword that describes the mood in the dialogue since is used to define Romeo's sarcastic joke.

the animal shelter ad with animals in cages, starving and dying.

explanation:

invention of the washing machine

in the past, people used sticks and stones or scrub boards to clean their clothing. as it was sweaty, backbreaking work, we owe a world of to james king because he created the model for the modern washing machine in 1851. the most important issue was that this machine cleaned clothes while a person cranked the handle. doing this made people who used it develop strong muscles in their arms. later, in 1908, alva j. fisher created an electric washing machine named thor. this one was not the first automatic washing machine. however, it was one of the most popular models at the time.