What is the primary source of energy for Earth?

The Sun is the primary source of energy for Earth. It provides light and heat, which are essential for life and drive processes like photosynthesis in plants. Solar radiation also powers weather patterns, ocean currents, and the water cycle. The energy from the Sun is harnessed by humans through solar panels for electricity and heating. Without the Sun’s energy, Earth would be a frozen, lifeless planet. The balance of solar energy reaching the planet and being reflected back into space is critical for maintaining Earth’s climate.