What is the main source of energy on Earth. What process accumulates this energy?

The main source of energy on Earth is the energy of the sun. During photosynthesis, cells of green plants and cyanobacteria accumulate solar energy, turning it into the energy of chemical bonds of ATP, and then into the energy of chemical bonds of molecules of synthesized organic substances.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.