
Janita K. answered 11/03/20
Experienced Math and ACT Tutor (middle school to college)
The correct answer is actually inductive reasoning. Inductive reasoning is when you use small, specific observations to prove broader theories, while deductive reasoning is when you use a broad theory to support smaller, more specific ideas. In this case, the scientists are using their specific observations, such as the fact that they found high amounts of iridium in that layer, to support their broad theory that a large meteor caused the extinction of dinosaurs. That means that this is a case of inductive reasoning.