What are the closed and open system of biosphere

The closed system is defined as the system which does not have any inputs and does not send any signals outside. The open system is defined as the system which does have inputs and does send signals outside. The earth is included under it in respect to energy. The earth receives energy and sends to the atmosphere. The sun is the main source of energy to earth. The ability of sun to produce energy is related to the process of nuclear fusion. It occurs by the help of hydrogen atoms. The matter is transformed to energy. The high energy radiations are removed. Out of the total energy only a few amount of energy is picked by the auto trophs and the rest is dissipated as a heat. This amount of energy is used to manufacture to their own food as well as food for the other organisms. The trapped energy is also dissipated. So, the earth receives the energy and releases the infra red waves as energy waves. The earth can also acts as a closed system with respect to the materials. The meteors which come to the earth have a very little amount of material. So, the earth neither gets the material from outside and nor it gives the material outside. The earth forms the atmosphere and it neither receives the gases and nor it gives the gases to outside environment.