The primary source of energy we receive from the sun is sunlight, specifically in the form of solar radiation. This energy is crucial for life on Earth, as it drives photosynthesis in plants, allowing them to convert sunlight into chemical energy. This process not only produces oxygen but also forms the base of most food webs, making solar energy essential for all living organisms. In addition to supporting life, solar energy can be harnessed through solar panels and other technologies to generate electricity, heat water, and power various systems on Earth.