The composition and structure of the natural environment, the composition of the natural environment

The composition of the natural environment is described as follows:

The sum of natural factors such as sunlight, temperature, climate, geomagnetism, air, water, rocks, soil, flora and fauna, microorganisms, and the stability of the earth's crust, that is, "the totality of all naturally occurring matter, energy, and natural phenomena that directly or indirectly affect human beings".

The natural environment is the material basis for the occurrence and development of human beings, and it is composed of biological and inorganic environments. The atmosphere, water and land form a variety of bioinorganic environments in a variety of combinations and coupling ways, giving birth to a variety of organisms.

Organisms include plants, animals, and microorganisms. They always exist in a group of biomes, usually composed of several trophic and energy levels. Green plants, as well as some pigmented protozoa and some light and chemobacteria are autotrophic organisms, the so-called producers, and are the first trophic and energy levels.

They use solar energy and chemical energy to store substances and energy by combining simple inorganic matter ingested from the environment into complex spike organic matter.

They absorb carbon dioxide in photosynthesis and release oxygen. Animals are consumers of ready-made organic matter, inhaling oxygen and exhaling carbon dioxide during breathing, among which herbivores belong to the second trophic level and are the primary consumers; Carnivores are the genus.

The third and fourth trophic levels are the first.

Second, the third sex consumer.

Microorganisms are the decomposers of organic matter, they convert animal and plant remains and excrement into simple inorganic matter, and at the same time use part of their substances and energy to form their own bodies, complete their own metabolic functions, and maintain their life and reproduction process. Both animals and microorganisms live on ready-made organic matter and are fed by autotrophic organisms, which are collectively called heterotrophic organisms.

The components that belong to the natural environment mainly include water, atmosphere, soil, vegetation and animals. Among them, water and atmosphere are the most important elements on the earth, and together they make up our natural ecosystem. Water and the atmosphere not only provide particularly important material resources for living things, but also largely determine the distribution and quantity of living things on Earth.

Soil is the basis for the growth and development of various plants and organisms, and is an important part of the terrestrial ecosystem, and vegetation is a general term for plants, including various trees, grasslands, grasslands, forests and other different biological communities, which provide important living conditions for animals such as sleeping, foraging, and reproduction. Animals are an important part of the ecosystem, not only maintaining the balance and stability of the ecosystem, but also responding to changes and adjustments in the natural environment.

The composition of the natural environment includes various environmental elements, such as natural resources, meteorology and climate, hydrology and water resources, geographical conditions, and biological communities.

Briefly describe the natural environment and its composition. A:The natural environment, also known as the material environment, refers to the general meeting of various natural conditions on which human survival and development depend, including various biological factors and abiotic factors, the former includes animals, plants, microorganisms, etc.; The latter has the atmosphere, soil, sunlight, etc., and these factors are important material conditions for human survival.

According to whether it is polluted by human activities, the natural environment can be divided into two categories:

Native environment: refers to the natural environment that is naturally occurring and not polluted by human factors. It is worth pointing out that the native environment also contains some factors that are not conducive to human health, such as chemical diseases caused by the uneven distribution of chemical elements caused by geological structure.

In addition, geological hazards in the native environment can also endanger human health.

Secondary environment: refers to the natural environment in which the natural environmental conditions, such as environmental landform and structural characteristics, have changed due to the influence of human factors. According to the type of human activities, the secondary environment can be divided into living environment and working environment.

The impact of secondary environment on human health is one of the important issues that need to be studied in the field of public health and preventive medicine in the 21st century.

The constituent elements of the natural environment include: water, atmosphere, organisms, sunlight, soil, rocks, etc., such as water constitutes a water body, all water bodies are collectively called hydrospheres, the atmosphere constitutes the atmosphere, all atmospheric layers are collectively called the atmosphere, farmland, grassland and woodland are composed of soil, rock masses are formed by rocks, and the solid shell layer composed of all rocks and soil is called lithosphere; The biome is composed of living organisms, and the whole search and relinquishment biome is collectively called the biosphere.

The elements of the natural environment are the basic material components of all non-human creations that directly and indirectly affect the environment of human life and production.

<> "The Composition of the Environment.

The environment is the sum of the factors on which human beings and living beings depend for their survival and development. The environment includes the natural environment and the social environment. The environment and people are opposed to each other and restrict, interdependent and transformative.

The environment provides all the necessary conditions for the survival and development of human beings, and human beings adapt to the changing external environment by adjusting themselves; At the same time, it also constantly transforms the environment and creates environmental conditions conducive to its own survival and development. The stronger the ability of human beings to transform the environment, the stronger the role of the environment on human beings. While transforming the environment, human beings have also brought a large amount of waste to the environment, causing environmental pollution, adverse effects on human health and even endangering lives.

1) Natural environment.

The natural environment of human beings, also known as the material environment, can be divided into two categories, one refers to the natural formation of the original environment, such as air, water, soil, etc.; The other type is due to the additional influence on nature exerted by industrial and agricultural production and human settlement, which causes changes in human living conditions, which is called secondary environment. It is a major environmental factor that endangers human health.

2) Social environment.

The social environment, also known as the immaterial environment, refers to the external world that is in contact with social subjects. Its subjects include individuals and groups. The social environment is composed of political system, economic culture, education level, population status, human behavior and other factors, and is an environmental system formed by the material production body created by human beings through long-term conscious social labor, processing and transforming natural materials, and the material culture that has been accumulated.