We are faced, according to Dr. Elton, “with a life-and-death need not just to find new technological means of suppressing this plant or that animal”; instead we need the basic knowledge of animal populations and their relations to their surroundings that will “promote an even balance and damp down the explosive power of outbreaks and new invasions.” Much of the necessary knowledge is now available but we do not use it. . . . We allow the chemical death rain to fall as though there were no alternative, whereas in fact there are many, and our ingenuity could soon discover many more if given opportunity. –Silent Spring, Rachel Carson Use the drop-down menus to analyze the writer’s use of persuasive strategies. In the first paragraph, the writer quotes an expert to . After presenting a possible solution, the writer then claims we do not use the knowledge we have, making the assumption that people .