In "a sound of thunder," all of the following elements of setting impact the theme and plot except
a. climate
b. location
c. time
d. year

Which best compares the authors’ purposes in silent spring and “save the redwoods”? both authors want readers to protect human rights. both authors want readers to focus on saving trees. both authors intend to entertain readers with their essays. both authors intend to convince readers of their viewpoint.