Geographicly, three ppt earth foundations, inc. Reporter: the shape of the planet in the xx catalogue 01 and the shape of the earth in size 02 and the shape of the earth in the magnetic field 05 of the earth 04 and the structure of the earth in mass 04, the earth's climate system 05 and the shape of the earth in size 01 are not perfect, but the shape of the earth in size 01, but the shape of the ellipse of the diode with a slightly flat equatorial drum, known as the shape of the elliptical body of the earth. The rotation of the earth's elliptical shapes has led to a partial expansion of the equator to shape the earth's elliptical shape, which is the result of a combination of gravity and centrifugal forces. The polar flatness of the earth's gravity field is the difference between the earth's polar and equatorial diameter, which reflects the asymmetrical nature of the earth's shape. The earth's polar flat-rate earth has an average radius of about 6,371 km and is one of the basic parameters for measuring the size of the earth. The earth's average radius is approximately 510 million square kilometres of surface area, of which about 29 per cent is land area. The surface area of the earth, which is approximately 1. 08321 x 10 ^12 cubic kilometres, is a spatial measure of the earth's capacity to accommodate the atmosphere and water bodies. The earth's mass earth coordinates system utm coordinates the longitude system 0103 utm (general-wide cross-axis mercator) coordinates the earth into 60 areas, each of which is located using flat coordinates. The surface of the earth is divided into longitudes and latitudes, forming a longitude grid for precise geographical location. Each location has a unique longitude and latitude coordinates, e. G. Beijing, with a geographical coordinates of 39. 9042 degrees north and 116. 4074 degrees east. The definition of the rotation of the geo-coordinated earth and the rotation of the earth in the form of the rotational movement of the earth around its axis, which is tilted about 23. 5 degrees. The definition of the rotation of the earth, 0102, leads to the rotation of different regions towards the sun, resulting in the alternation of day and night, which is the basis for the calculation of time on earth. Corioli, which is the result of day and night turnover of 03, affects global wind and ocean currents and is an important factor in meteorological and oceanographic research. The definition of corioli rotation and the one-week rotation that affects the earth is known as a public rotation, with a cycle of approximately 365. 25 days, which forms four seasons a year. The definition of public transit 01 earth rotation leads to the movement of direct solar points between the equatorial and north-south regression lines, causing seasonal shifts. Seasonal variations02 occur in the polar circle of the earth and, as a result of changes in the angles of the public, extremes of the day or night occur. The extremes of day and night 03 combined with the gravity of the moon, causing tidal phenomena on earth and affecting marine life and climate. The effect of the 04 season changes is due to the slope of the earth's axis, which results in the receipt of different amounts of solar radiation at different latitudes, resulting in four seasons. The impact of the earth's tilt is due to the tilt of the earth's rotational axis, with changes in the length of day and night in different parts of the season, affecting climate and seasonal features. When the earth rotates around the sun by day and by night, the direct point of the sun moves between the equator and the regression line, causing seasonal shifts. The structure of the moving earth at the point of direct solar activity03 consists of the crust consisting mainly of elements such as oxygen, silicon, aluminium and iron, which are widely distributed in the form of silicate minerals. The chemical composition of the crust is unequally thick, with the continental crust having an average thickness of about 30-50 km, while the marine crust is much thinner, with an average thickness of about 7-10 km. The crust's thickness changes into three broad categories of fire-forming, sedimentary and variable rock, with unique formation processes and characteristics for each rock type. The formation and characteristics of the rock-type 010203 mantle and the earth's core mantle are composed of rocks, divided into upper and lower mantles, which have a plastic flow characteristic and have a significant impact on the plate movement. Thermally active core heat of the earth's core influences the earth's magnetic field and geological activity through mantle convection and crust transfer. The substrates of the substrates of the earth's core are subdivided into outer and inner cores, which are liquid and solid, consisting mainly of iron and nickel, with very high temperatures. The mantle convection is the main driver of the crustal plate movement, which leads to continental drift and seismic activity. The dynamic processes within the earth's surfaces collide with each other, away from or through them, leading to earthquakes, volcanic eruptions and mountain formation. Thermal convection of the crust plate moving mantle material is the main force driving the plate movement and influences the tectonic activity on the earth's surface. The degradation of radioactive elements within the earth's mantle is generating heat and maintaining the high temperature of the earth's core, with important effects on the earth's magnetic field. Thermal energy of the earth's core generates the earth's magnetic field of 04, the magnetic field of the earth's formation, which is mainly generated by the flow of its internal liquid iron core, similar to that of a giant magnet. External factors such as the liquid iron solar wind inside the earth have an impact on the magnetic field, leading to the formation and change of the magnetosphere and protecting the earth from cosmic rays. The geological records of the influence of external factors show a number of reversals of the geomagnetic field, which provide important clues for studying the processes within the earth. The role of the reversal of historical geomagnetic fields in the geomagnetic field protects the earth's organisms from solar wind and forms a protective layer against electric particles in the solar wind and avoids harm to earth's organisms and atmosphere. Many animals, such as pigeons and sea turtles, use geomagnetic fields for migration and navigation, which provide them with a sense of direction. Changes affecting the geomagnetic field of radio communications could affect the transmission of radio waves, particularly in communications with short waves and auroral belts. Changes in the geomagnetic field are not constant in intensity of the earth's magnetic field, and there have been significant changes in intensity in history, such as the weakening of the magnetic field in the seventeenth century. There have been numerous reversals in the history of the volatile magnetic field of the earth, i. E., in the magnetic arctic and the magnetic antarctic, the most recent of which occurred about 780,000 years ago. The geomagnetic field is not fixed, and they move slowly on the earth's surface, for example the arctic point has moved in the direction of russia in recent decades. The distribution and characteristics of the earth's 05 ocean, the water column of the geomagnetic pole that moves the earth, are covered by the sea by approximately 71 per cent of the surface of the earth, of which the pacific ocean is the largest, accounting for one third of the earth's surface area. The global ocean distribution profile of the mariana trench is the deepest known trench, with depths exceeding 10,000 metres, with numerous seamounts and basins below sea level. The depth of the oceans and the geomorphological features of the equator are characterized by high temperatures and relatively high salinity of sea water, which is also low in polar waters. Temperatures of the oceans and the gravitational effects of the salinity moon and the sun have led to tidal phenomena in the oceans on earth, with currents affecting the global climate and the distribution of marine life. Water vapour condensation in the clouds, the basic principle of ocean current cycling, forms droplets or crystals of ice and, when a certain weight is reached, land to form precipitation on the ground. Solar radiation during precipitation processes results in the evaporation of the surface of the water body and the formation of water vapour into the atmosphere. Water vapour rises to the high altitude and condensed into clouds are key steps in the water cycle. The evaporation process uses water resources and protects the rational exploitation of marine resources, such as desalination, while protecting marine ecosystems against overfishing and pollution. Establishment of sewage treatment plants, treatment of domestic and industrial wastewater and recycling of water resources. Rational planning of agricultural irrigation and the promotion of water-saving domestic appliances to reduce waste of freshwater resources. The definition and classification of the climate system for the sustainable development of the earth's climate for freshwater resource conservation, sewage treatment and reuse of marine resources refers to the average state of the atmosphere in an area over time, including temperature, precipitation, wind, etc. The definition of climate is based on the corben classification of climate and the global climate is classified as tropical, arid, temperate, cold and polar. Climate classification methods have unique temperature and precipitation patterns in different climatic zones, such as tropical rainforests, which are warm and wet throughout the year, while desert climates are dry and rain-poor. Natural factors such as changes in earth orbit, volcanic eruptions and solar activity that characterize climate change in the climate zone can affect the climate system and lead to climate change. Natural factors such as the burning of fossil fuels, deforestation, etc. Release large amounts of greenhouse gases and exacerbate global warming. Human-induced impacts of climate change and climate change contribute to the frequency of extreme weather events, such as heat waves, heavy rains, droughts, etc., which affect human livelihoods and agricultural production. Global warming due to increased extreme weather events has led to the melting of glaciers and sea-level rise threatens coastal cities, such as low-lying areas in bangladesh。02 sea level
