Biosphere

In the solar system, the earth is the only celestial body with life. Regardless of the Antarctic, snow and snow everywhere; or in the tropical heat like burning, regardless of whether it is in the arid desert or immense in the sea, people can find traces of life everywhere. People call the environment of existence and operation of all animals, plants, microorganisms that are biosphere .

Ecological relationships between biosphere species ( Photo: uwsp.edu )

Plants are an important member of the biosphere. Many scientists believe that, when the Earth was newly formed, the main component of the atmosphere at that time was CO2, the oxygen content was very small. It was not until plants appeared, under the photosynthesis of plants, that new oxygen was born, making people full of intelligence and large animals alive. It is estimated that plants on Earth have more than 500,000 species. Plants living together are called vegetation such as forest trees, grass carpets, desert mats, .

Biosphere animals are widely distributed. It is estimated that animals on Earth have about 1.5 million species. People divide animals according to the ecological characteristics of the herd in different natural environments into forest animals, grassland animals, savannah animals, animal resources and alpine animals .

Every creature on Earth has a strong adaptability, especially microorganisms, strong adaptation and rapid reproduction. Geological exploration shows that hundreds of meters deep, even 1 kilometer has bacteria. Some low-grade fish and plankton can live in the sea at a depth of more than a dozen kilometers. The process of living is the process by which organisms always convert solar energy into chemical energy. Coal and oil are all living things that build up. Petrified weather, soil formation are inseparable from the active participation of organisms.

Earth's biosphere has billions of years of development to form a living environment today. In the long run, there is always the participation of the atmosphere, hydrosphere and Earth's crust. Therefore, biosphere formation is the result of contact, penetrating each other and interplaying between the atmosphere, hydrosphere and Earth's crust.