Which best describes one main difference between rachel carson’s silent spring and john muir’s "save the redwoods"? a. carson is concerned about the destruction of the entire environment, while muir is only concerned about a certain part of the environment. b. carson speaks of a possible future, while muir discusses only what has happened in the past. c. carson believes that the past was just as bad as the present, while muir believes that the present is worse than the past. d. carson offers facts and evidence to support her argument, while muir appeals to readers’ emotions mostly through a fictional account.