Light and dark are fundamental concepts that represent the extremes of brightness and absence of light. Light is often associated with visibility, warmth, and positivity, while darkness can symbolize obscurity, mystery, and sometimes negativity. In visual arts, the contrast between light and dark creates depth and dimension, enhancing the overall composition. In nature, light and dark play crucial roles in ecosystems. For example, photosynthesis relies on sunlight, while many nocturnal animals thrive in darkness. This contrast affects behavior, growth, and survival, illustrating the balance necessary for life. Understanding light and dark helps us appreciate their significance in both art and nature.