What is the difference between the tense future and future perfect?

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.

Which of these novels is considered an important precursor to science fiction

What does robert frost accomplish by using blank verse in his poems he mimics the sound of natural speech. he establishes a sense of formality. he establishes order through rhyme. he makes his poems original by breaking the rules.