Scientific research starts with a problem or a question. That question becomes the basis for a hypothesis, or testable statement. Sally decided to run an experiment that tests this hypothesis: Earthworms prefer moist, loamy soil over dry, sandy soil. What question MOST LIKELY generated her hypothesis?

Need asap write a short paper describing the history and differences between six sigma, waterfall, agile, and scrum models. understanding these models can give you a good idea of how diverse and interesting it development projects can be. describe what the rationale for them is and describe their key features. describe the history behind their development. at least 400 words