Darkness and light play crucial roles in our survival and well-being. Here's why:

1. Light for Energy: Light is essential for the process of photosynthesis in plants. Through this process, plants convert light energy into chemical energy, which is stored in the form of glucose. This glucose is then used as a source of energy for all living organisms, including humans, as we consume plants or animals that have consumed plants.

2. Vitamin D Synthesis: Sunlight is a vital source of vitamin D for 