The Meso-Oceanic Ranges are centers of oceanic crust generation and ocean floor spreading. It is the region of shallow earthquakes. Among the shallow earthquakes, 75% of the energy released comes from the Pacific Belt, 23% in the Himalayas and 2% to the rest of the world.
The earth is has a temperature and is characterized by the system of the heat budget that acts as a balance to the flow of the heat with the earth's latitudes.
Thereby it keeps the earth warm form within and also filters the UV radiation and also provides water in the form of the rain.
The entire atmosphere act as a filter to the solar radiation that falls on the earth and thus acts shield to protect the planet.