How far has the planet become?

It's so severe that you can see the warming of the atmosphere.

Will people be extinct? I'm afraid that all are hateful human beings who destroy the environment (don't look at the puppet).

1. If we all take action to protect the earth's environment, our home will become a better place.

2. Human beings can only survive on the earth, and if human beings destroy their homes, human beings will be homeless.

3. If we don't save water resources and be cautious, then the last drop of water in the world will be human tears.

4. If the river is clear, the fish can play happily.

5. If everyone does not litter and takes care of nature, we will live a healthier and longer life!

6. If there is no air in the world, humanity will perish.

7. If there is no great sun, there is no beautiful and lovely world.

8. If there is no green leaves, there is no beautiful home.

9. If we don't cherish water resources, the earth will become a desert, and our survival will be even more difficult.

10. If we have a kind heart, people will treat us well, and the world will treat us well.

11. If the fish leaves the water, they cannot survive.

12. If everyone gives a little love, the world will be a better place.

13. If there is no sunlight and no air, there will be no animals, no plants, and no human beings.

The Earth's environment refers to the atmosphere, hydrosphere, pedosphere, lithosphere and biosphere, also known as the global environment or geographical environment. The global environment is particularly closely related to people and living things. Among them, the organisms in the biosphere are closely linked to the relationship between the various spheres on the earth, and form a total ecological network of human existence, in which material circulation, energy conversion and information transmission are carried out.

There are four main types of resources in the earth's environment:

1. The three elements of life: air, water and soil;

2. Six natural resources: minerals, forests, fresh water, land, biological species, fossil fuels (oil, coal and natural gas);

3. Two types of ecosystems: terrestrial ecosystems (like forests, grasslands, wilderness, etc.) and aquatic ecosystems (like wetlands, lakes, rivers, oceans, etc.);

4. Diverse landscape resources: mountains, water flows, native animal and plant species, natural and cultural historical relics, etc.

The earth is not a homogeneous body, but is made up of concentric circles of different states and different material compositions. Sphere. The circle above the ground is called the outer circle, and the circle below the ground is called the inner circle.

The Earth's outer sphere consists of three spheres: the atmosphere, the hydrosphere, and the biosphere.

Global environmental change can be divided into five temporal characteristics:

1. Millions to billions of years (geological history period).

Global change events are controlled by the laws and processes of the earth's planetary evolution, such as the evolution of the vicissitudes of the earth caused by the movement of lithospheric plates, the formation and evolution of large topographic units such as mountains and plateaus by orogeny and land-building movements on land, the formation and evolution of the atmosphere and hydrosphere, and the origin of life and the emergence of primitive humans. (irreversible event).

2. Thousands to hundreds of thousands of years (the most recent period of geological history).

The alternation of the Quaternary glacial and interglacial periods, the rise and fall of the sea level, and the changes in atmospheric composition accompanied by changes in cold and warm, dry and wet changes, such as changes in dust content, the development of paleosoil layers, the distribution, migration and extinction of biological species, and the birth and development of human civilization. (Reversible Event).

3. A few years to several hundred years (inter-annual, inter-decadal-inter-century).

Typical events include the trend of global temperature, quasi-periodic fluctuations and abrupt changes in temperature, sea surface temperature, precipitation, runoff, surface erosion, plant phenology and growing season, changes in plant population structure, and possible movement of vegetation zones.

Driving forces: solar activity, volcanic activity, long-term changes in atmospheric circulation, natural factors such as the El Niño-Southern Oscillation and anthropogenic factors such as the enhancement of the atmospheric greenhouse effect.

4. A few days to a few quarters.

Typical events: seasonal fluctuations in atmospheric circulation**, seasonal fluctuations in temperature, precipitation and land surface, seasonal facies of plant communities and agricultural seasons, interannual variation of biogeochemical cycles between soil, plants and atmosphere.

Driving force: The annual cycle of solar radiation input.

5. A few seconds to a few hours

Typical events: diurnal variation of climatic elements, weather phenomena of a few minutes to a few hours, diurnal variation of temperature between plants and soil, and transfer of matter and energy between soil, plants and atmosphere.

Driving force: The diurnal period of solar radiation energy input.

The Earth began as a red-hot ball of hot liquid matter, mostly magma.

It is the period of formation of the Earth's sphere, which is roughly 46 million to 100 million years ago, and the Earth at the time of its birth is very different from the 21st century. Scientists theorize that the Earth began as a red-hot ball of liquid material, mainly magma. Over time, the temperature of the earth's surface continues to drop, and a solid core gradually forms.

The dense material moves towards the center of the earth, and the less dense material (rocks, etc.) floats on the surface of the earth, which forms a earth whose surface is mainly composed of rocks. The duration of the Phanerozoic is relatively short, but during this period, the organisms and their flourishing, the geological evolution is very rapid, the geological processes are rich and colorful, and the geological bodies are all over the world and are widely preserved, so they can be observed and studied very well.

A long time ago, when human beings did not exist, most of the land was covered with many plants, and the scenery was very beautiful, and the land was very rich. At that time, the sunset and sunset, the rainbow after the rain, the clear water of the river, and the sunrise in the east were all very common sights.

Episode 4|Classification of energy: according to the degree of environmental pollution increase knowledge learning electrician.