Atmosphere and hydrosphere subsystem
Atmosphere subsystem: refers to the mixture of gases that surrounds the Earth. The atmosphere ensures a comfortable temperature for life, protects living beings from harmful solar radiation, mitigates the impacts of meteorites and contains gases vital for living beings such as carbon dioxide, used in photosynthesis, and the oxygen necessary for cellular respiration.
Hydrosphere subsystem: It is formed by the planet's water reservoirs, which are found on or near its surface. Including seas and oceans, rivers, lakes, glaciers, groundwater and clouds (formed by water or ice particles suspended in the atmosphere). In addition to being the main constituent of living beings, water is the habitat of many forms of life... Did you know?