The main source of energy on the surface of the Earth is solar energy, which is derived from the Sun's rays. Solar energy influences climate patterns, weather systems, and the growth of plants through the process of photosynthesis, making it fundamentally crucial for life on the planet. This renewable energy source powers the majority of natural processes and ecosystems, impacting everything from temperature regulation to the water cycle. Other forms of energy, such as geothermal, wind, and hydroelectric power, also contribute but are secondary to the vast energy provided by sunlight. The harnessing of solar energy has become increasingly important for sustainable development.