The "Physical Realm" refers to the tangible world that we can see, touch, and interact with. It includes everything that has mass and occupies space, such as plants, animals, and objects. This realm is governed by the laws of physics, which dictate how matter behaves and interacts with energy. In the Physical Realm, phenomena can be observed and measured using scientific methods. This includes studying the properties of matter, the effects of gravity, and the behavior of light. Understanding the Physical Realm is essential for advancements in fields like engineering, biology, and environmental science.