Mandy's "save the whales" speech was very effective because she started off with some stories about whales, then she moved into facts, statistics, and sources. which principle of support material organization did mandy effectively use in her speech?

In public speaking, there are types of integration of presenting supporting materials. This kind of support material organization is soft to hard evidence. The speaker starts off with the soft evidence like stories and examples of the topic. Then, moves on to what we call the hard evidence which are the facts, numbers that support these facts.