The major source of energy for the Earth is the Sun. Solar energy drives most processes on our planet, including photosynthesis, which powers the food chain. The Sun's energy influences climate and weather patterns, impacting ecosystems and water cycles. In addition to natural processes, humans harness solar energy for various purposes, including solar power generation through photovoltaic cells and solar thermal systems. As awareness of climate change grows, solar energy's role in renewable energy solutions continues to gain importance as a sustainable alternative to fossil fuels.