In Maslow's hierarchy of needs, which tier emphasizes the necessity for food and water?

The tier that emphasizes the necessity for food and water is physiological needs. In Maslow's hierarchy of needs, physiological needs form the foundation of the pyramid and include essential requirements for human survival, such as air, water, food, shelter, sleep, and clothing. These basic needs must be satisfied before individuals can focus on higher-level needs, such as safety, love, and self-actualization. When physiological needs are unmet, they dominate human behavior, forcing individuals to prioritize securing these essentials over other psychological or emotional aspirations. This tier is crucial because it directly impacts an individual’s ability to function and thrive in their environment.