How can Chekhov’s Gun help you decide which imagery is important to include in your story?

Which of the following is a compound complex sentence

What does"after getting my report card i knew it was time to hit the books mean

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.