Answer:
The author develops the marital harmony theme through plot details. The author develops the small-town gossip theme through setting details. The author develops the coming-of-age theme through point of view.
#1 : A. meanings of collective nouns
#2: (I am not too sure about this one but i think it's either A or C
#3: B. Define
#4: Some of these nouns are pretty amusing
Sorry for being 3 days late :(
Scientific knowledge change over time because we discover news things or properties that impacts how things actually work in the science world. What impact these have on society is that it helps us be more aware of the things in our world, apply these newly dicover knowledge into our own lives to make it better, and it is the beginning step to knowing and discovering more about the world that we live in.
A seems like the most logical answer.