Answer:
A physical scientist (PS) is a scholar in a natural science field, such as chemistry, physics, biology, geology, astronomy, and atmospheric/oceanic science. On the other hand, a mathematical scientist (M) is a scholar in a field of pure or applied mathematics. The main difference between these two sciences is that physical sciences primarily focus on understanding and describing the physical world while mathematical sciences are concerned with developing and applying mathematical models and theories. Additionally, physical scientists often rely on experiments, observations, and measurements to test their theories and understand the natural world, while mathematical scientists primarily rely on mathematical models, equations, and computational simulations. It is important to note that physical and mathematical sciences can be closely related and often overlap, but they are distinct disciplines with different approaches to problem-solving and knowledge production.