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1. There are air, soil, rocks, water, animals, plants, and people in the earth's home, .......
2. Non-living and biological resources such as sunlight, air, water, plants, and animals are indispensable to the earth's home.
3. Soil is an important resource for the earth's home. Many plants live on the soil. Many animals live on the surface of the soil and in the soil.
4. The sun can shine and heat.
5. The light and heat of the sun have an important impact on the growth of plants and the survival of animals and humans. The position of the sun in the sky is constantly changing.
6. We can use the sun to discern direction.
6. The sun rises in the east and sets in the west, and when facing the direction of the rising sun, the front is east, the back is west, the left is north, and the right is south.
7. Facing the sun, the front is west, and the time is evening.
7. In the evening, facing the sun, the front is west, and the left is south.
7. Early in the morning, facing the sun, the front is east, and the left is north.
7. Moon phases. Yes, the moon phase may not be the same on different nights.
8. The phases of the moon change gradually, sometimes the bright side of the moon phase gradually becomes larger, and sometimes it gradually becomes smaller.
9. The Moon as we see it.
The part that is illuminated by the sun is called the moon phase.
9. When we see the moon phase, it is generally the fifteenth day of the lunar calendar.
9. Weather phenomena include cloudy, sunny, rain, snow, wind, etc.
10. Weather factors such as precipitation, light, and wind will affect people's production and life including agricultural irrigation, wind power, and solar power generation.
11. The typical phenomenon of seasonal changes varies throughout the year. The seasons are spring, summer, autumn and winter.
12. Seasonal changes have an impact on plant growth, animal migration, and human clothing.
12. The season when the temperature is high and the plants grow luxuriantly is summer.
13. The season of plum blossoms is winter.
13. Human clothing, food, shelter and transportation are inseparable from the resources provided by animals and plants.
13. The home of the earth is nature.
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It is an important resource for the earth's home.
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Soil formation should be more complex. 1 Interstellar dust at the time of the formation of the Earth, and later the fall of alien comet meteorites into the Earth. 2. Dust from volcanic eruptions. 3. Surface rocks are weathered and broken. 4. River impact and stone impact. 5. The wind blows the sand and stones.
Soil is the foundation of plant survival. Plants, in turn, are the basis of terrestrial life. So soil is the most valuable resource.
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Formation of soils.
1.Interstellar dust at the time of the formation of the Earth, and later the fall of alien comet meteorites into the Earth.
2.Dust from volcanic eruptions.
3.Surface rocks are weathered and broken.
4.River impact and stone impact.
Because soil provides habitat for many organisms, such as earthworms; It also provides human beings with materials for food, clothing, shelter and transportation, so it is the most valuable resource.
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We know that the age of the Earth is about 100 million years. So, did soil appear on Earth from the beginning? The answer is, of course not.
When the earth was formed, the first thing that appeared was only rocks. Rocks are one of the most primitive resources on earth. Let's put aside the air first, let's not talk about it, let's put aside the air and water first.
When the Earth was formed in 100 million years, it was itself a huge stone. Whether it is under the soil, in the ocean, or on the mountain, it is made up of rocks, and the surface of the earth is also wrapped in hard rocks.
A friend is asking, are we standing on the soil? Of course, we are standing on the soil. But if we cut the land, then it can be divided into four layers, the top layer is called the topsoil, the second layer is called the lower soil, the third layer is called the bedrock clastics, and the fourth layer is called the bedrock.
In other words, we are actually still standing on a rock. The earth is changing at a time. The rocks slowly change as they move.
Rocks on the earth due to the movement of the earth's crust, sun, wind, water, volcanoes and other external forces. Due to the weathering of the rocks, the rocks on the earth slowly change and slowly break apart, forming very small particles. Large rocks slowly turn into small stones, and small stones turn into grains of sand.
The grains of sand turn into sand, the sand into silt, and finally the silt sand becomes smaller, and it becomes clay. Clay is the smallest particle in the soil.
Soil is not made up of one substance. It is made up of many kinds of substances. According to the size of the particles, we can divide the soil into the following categories.
The first type is called gravel. The second type is called sand. The third type is called silty sand, and the smallest type is called clay.
In addition to the size of the particles, it is also mixed with water, inorganic salts and some minerals, as well as the remains of animals and plants, which are formed into humus. Then form the soil. Then there is soil, then there are conditions for plants to grow, and then plants appear on the earth.
After plants, animals slowly evolved on earth. As animals evolved, humans slowly evolved.
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Because plants need soil to grow, and it's not necessary, but it's true that the most important of all other organisms is the plant, the producer, and without the producer, there is no other organism, and then there is nothing.
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Soil is land that can be exploited and used by humans to sustain their own existence and development.
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Soil resources are the most valuable resources for human beings, because all human activities are carried out on the land. Soil, on the other hand, is land that can be exploited and used by human beings to sustain their own existence and development. So, soil is the most valuable resource on earth.
The same applies to other terrestrial plants and animals. However, it does not apply to aquatic animals and plants.
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Plants are necessary for survival, and without producers [soil] there are no plants, and without plants we cannot survive.
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1. Human beings live on the soil and enjoy the air and sunlight on the soil.
2. The vast majority of human food depends on soil to grow, and without soil, there will be not enough food to sustain human survival.
3. Almost all the industries of human society are on the soil, and without the foundation of the soil, all buildings will cease to exist!
4. Soil is the loose surface layer of the lithosphere, the substrate for the life of terrestrial plants and the substrate for the life of terrestrial animals. Soil not only provides essential nutrients and water for plants, but it is also a habitat for soil animals. The formation of soil is inseparable from the activities of living organisms from the beginning, so the soil always contains a variety of organisms, such as bacteria, fungi, actinomycetes, algae, protozoa, rotifers, nematodes, earthworms, mollusks and various arthropods, etc., and a few higher animals (such as moles, etc.) live in the soil for life.
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Answer: Soil is the product of the combination of five factors: rock, climate, biology, topography and time: the release and loss of nutrients under the action of weathering, the accumulation of organic matter under the action of lower organisms and microorganisms, and the enrichment of nutrients (resynthesis of humus from organic matter) under the action of higher organisms.
Question: A summary of the formation of soil.
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Plant beans and beans and grow melons and get melons, this sentence must have been heard of by everyone, what you plant in the ground will grow something, but what we mean by land is the land, the land is full of soil, with soil crops can thrive, all plants on land can flourish.
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Soil formation is a very complex process.
Now we generally look at the theory of soil formation factors established by Dokuchaev, which can be summarized as four basic viewpoints:
Soil is the product of the comprehensive action of five natural factors: parent material, climate, biology, topography and time.
All soil-forming factors always exist at the same time and are equally important and irreplaceable in the formation of soils.
Soil is always subject to the development and change of soil-forming factors and is constantly formed and evolved. Soil is a natural body that is in motion, living and dying, advancing and retreating.
There is a geographical distribution of soil formation factors, especially the zonal variation from the polar region through the temperate zone to the equator.
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From the point of view of soil formation, it should be that the soil will be formed after there are organisms on the earth.
The basic viewpoint of the theory of soil-forming factors can be summarized as follows: Soil is an independent natural body, which is formed by the very complex interaction of various soil-forming factors. For the formation of soil, various soil-forming factors are equally important and irreplaceable for each other.
Organisms play a leading role in it. Soil is formed by the action of living organisms on the parent material of soil formation in a certain period of time, under certain climatic and topographical conditions.
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Soil is the main body of nature composed of layers of minerals of different thicknesses. The difference between soil and parent layer is manifested in morphology, physical properties, chemical properties and mineralogical properties. Due to the interaction of the earth's crust, water vapour, atmosphere and biosphere, the soil layer is different from the parent layer.
It is a mixture of minerals and organic matter, in solid, gaseous and liquid states. Loose soil particles combine to form a form of soil filled with gaps. These pores contain dissolved solutions (liquids) and air (gases).
As a result, soils are often seen as having multiple states. Soil is a loose layer of material on the earth's surface, composed of various granular minerals, organic matter, water, air, microorganisms, etc., which can grow plants.
Plants are one of the main forms of life and include familiar organisms such as trees, shrubs, vines, grasses, ferns and green algae. Most plants depend on soil for survival. If there is no soil, there will be no many plants, and the whole living system will be affected.
Because plants survive through air, water, and sunlight. This is something that humans and animals can't do. Know that animals survive by eating other animals and plants.
Living systems depend on the food chain to sustain them, and plants are at the end of the food chain and are the basis for maintaining living systems. Without plants, living systems are like trees without roots and water without sources. A living system cannot be without any link in the food chain.
Otherwise, the entire living system will collapse.
Many plants live on soil suitable for plant growth, and plants support animals, so it is true that soil is the common home of humans, animals and plants.
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