Layers refer to distinct levels or strata that can be found in various contexts, such as geology, biology, and even in everyday objects. For example, in geology, layers of rock can reveal the history of the Earth, with each layer representing a different time period. In biology, layers of cells can form tissues and organs, each serving specific functions. In everyday life, layers can be seen in clothing, where different garments are worn together for warmth or style. Similarly, in food, layers can create texture and flavor, such as in a lasagna or a cake. Understanding layers helps us appreciate complexity in both nature and human-made items.