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Anonymous users2024-02-08Summary. Hello, if we rank the most abundant elements in the earth's crust by mass, the top eight are oxygen (silicon (aluminum (iron (calcium (sodium) potassium (magnesium (. Oxygen is the most abundant element in the earth's crust, with oxygen accounting for 467,100 ppm (parts per million) in the earth's crust, or.
It is the main compound of silicate minerals and is combined with other elements, and it is also present in carbonates and phosphates in the form of compounds.
Find the 8 most abundant elements in the solar atmosphere, the solar system and the earth.
Hello, if you sort the most abundant elements in the crust according to the quality of the ear, the top eight are oxygen (silicon (aluminum (iron (calcium (calcium (sodium (potassium (magnesium (. Oxygen is the most abundant element in the earth's crust, accounting for 467,100 ppm (one millionth of a millionth) in the earth's crust, or. It is the main compound of silicate minerals and is combined with other elements, and it is also present in carbonates and phosphates in the form of compounds.
Terra) is one of the eight planets in the solar system, the third in order of near to far from the sun, and the terrestrial planet with the largest diameter, mass and density in the solar system, at a distance of 100 million kilometers from the sun. The Earth rotates from west to east, while the circumference revolves around the Sun. It is 4,04.6 billion years old, and it has a natural satellite, the prelunar sphere, which forms a celestial system, the Earth-Moon System.
It originated from the primordial solar nebula 4.6 billion years ago. The radius of the Earth's equator is kilometers, the polar radius is kilometers, the average radius is about 6,371 kilometers, and the circumference of the equator is about 40,076 kilometers. The surface area of the earth is 100 million square kilometers, of which 71% is oceans and 29% is land.
The interior of the earth has a core, mantle, and crust structure, and the outside of the earth has a hydrosphere, atmosphere, and magnetic field. The Earth is the only celestial body in the universe where life is known to exist, and it is home to millions of living beings, including humans.
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Anonymous users2024-02-07The most abundant substance in the human body is water, and hydrogen is in water.
The mass ratio to oxygen is about 1:8, so the most abundant is oxygen.
The element that is almost the same as the human body is also oxygen.
The most abundant substance in seawater is also water, so the most abundant is also oxygen.
The nitrogen content in the air is the most abundant, accounting for about 78%, followed by oxygen at 21%, so the most abundant element in the air is nitrogen.
The mass ratio of hydrogen to oxygen in water is about 1:8, and oxygen is the most abundant in water.
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Anonymous users2024-02-06Your demands are high and your bounty is low. I guess you're a ninth-grader, I'll give you a brief answer:
The most abundant element in the air is nitrogen (N), the most abundant element in the earth's crust is oxygen (O), the most abundant metallic element is aluminum (Al), the most abundant element in the human body is oxygen (O), the highest metallic element is calcium (Ca), the most abundant element in seawater is oxygen (O), and the most abundant metallic element is sodium (Na).
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Anonymous users2024-02-05The most abundant element in the air is nitrogen (N), the most abundant element in the earth's crust is oxygen (O), the most abundant element in the human body is oxygen (O), and the most abundant element in seawater is oxygen (O).
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Anonymous users2024-02-04There are hundreds of moons in the solar system, most of course concentrated around Jupiter and Saturn, and two of them are of sufficient interest to scientists, that is, Europa and Titan, there is a liquid ocean under the surface of Europa and stable liquid on the surface of Titan, and scientists are likely to find simple life on these two celestial bodies. Today, let's focus on Titan.
Image: Sunrise simulation of the surface of Titan.
Cassini's Saturn probe has now been decommissioned and a controlled impact on Saturn, following the data collected during Cassini's last close-up flyby of Titan in 2017 to show the depth of Titan's liquid lakes in the northern hemisphere, a study published in the April 15 issue of Nature Astronomy. This liquid methane lake is filled with liquid methane and sits on a hill at a depth of more than 100 meters.
Titan, the only object in the solar system other than Earth, has a stable fluid, and through this data study, scientists have made new discoveries about the rainfall, evaporation and infiltration of liquid methane into Titan. Scientists believe that the liquid cycle on Titan is similar to the water cycle on Earth, with the only difference being that there is no ocean on Titan.
It is likely that simple life is present in Titan's methane lakes, which is one of the main reasons why scientists are obsessed with it.
Researchers at Cornell University in the United States have proposed a life model of "nitrogen bodies", which can live directly in liquid methane and ethane to carry out a simple life cycle, and can survive at a low temperature of nearly minus 180 degrees Celsius.
It is worth noting that because Titan is covered by a dense atmosphere, for the orbiter, although optical images in the visible and near-infrared bands also have a certain auxiliary role in identifying landforms (especially lakes), the accurate detection of surface information (especially terrain information) mainly depends on radar, which is very similar to Magellan's exploration of Venus (the Huygens lander can observe the surface up close, but this coverage is negligible).
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Anonymous users2024-02-03Saturn. Saturn is a celestial body rich in various types of hydrogen and nitrogen and their compounds, and there is a large area of water below Saturn's geological layer, which is about 7,000 times the total amount of water on Earth.
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Anonymous users2024-02-02This celestial body is one of Saturn's moons - Titan. We also call it Titan.
Titan is the only object in the solar system other than Earth with a stable liquid, and scientists have found huge lakes and other smaller lakes near the North Pole through images sent back by probes, as well as another large lake in the Southern Hemisphere. These lakes and oceans are not water, but liquid alkanes. So it's possible that life could have been on Titan.
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Anonymous users2024-02-01It is now confirmed that Jupiter's third moon has a considerable area of saltwater ocean below the surface, and the reserves are larger than those of Earth.
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Anonymous users2024-01-31The most abundant element in the empty mode such as gas: nitrogen n
The most abundant element in the earth's crust is: oxygen element O
The element with the most denier in the sun: hydrogen element h
The most abundant element in seawater: oxygen O
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Anonymous users2024-01-30Of the 111 chemical elements found on the earth, 92 have been found in seawater, and some of them are extremely abundant, such as sea salt, if all the seawater is evaporated, the thickness of the salt left on the seabed can reach 57 60 meters; Some elements are extremely small, such as 3 milligrams of uranium per tonne of seawater, but the entire ocean contains up to 4 billion tonnes of uranium, more than 4,000 times more than the reserves on land. In some countries, mining in shallow offshore waters has been going on for many years. For example, tin in Sri Lanka and diamonds along the coast of South Africa have been mined on a certain scale.
Bromine is known as the "marine element", more than 99% of the earth's bromine is in the sea, and the vast majority of the bromine used worldwide is extracted from every water. Magnesium extraction from seawater also has a history of more than 50 years. At present, the world's seawater magnesia production accounts for 1 3 of all magnesia production.
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Anonymous users2024-01-29The content of various elements in the air is frankly ranked in the top three credibility:
1.Nitrogen accounts for 78 08
2.Oxygen accounts for 20 95
3.Argon occupies 0 93
The content of elements in seawater ranks in the top three: (sorry for the proportion is unknown) 1Hydrogen sock segment.
2.Oxygen 3Sodium (and possibly chloride).
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Anonymous users2024-01-28The most abundant gas in the air is nitrogen, and nitrogen is composed of nitrogen, so the most abundant element in the air is nitrogen; The elements with more content in the earth's crust (the first four) are sorted by content from high to low: oxygen, silicon, aluminum, iron, of which the most abundant element is the oxygen element'The composition of the earth's core is mainly iron, and iron is about, and the most abundant element in the earth's core: iron;The most abundant element on the sun is hydrogen, followed by helium The most abundant substance in seawater is also water, so the most abundant element in seawater is also oxygen; The most abundant substance in the human body is water, and the mass ratio of hydrogen to oxygen in water is 1:
8, so the most abundant element in the human body is oxygen;
So the answer is: nitrogen; Oxygen; Iron; Hydrogen; Oxygen; Oxygen;
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Anonymous users2024-01-27The four most abundant elements in the earth's crust.
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The sea water is all frozen, the first direct impact is the organisms in the ocean, the oxygen contained in the water in the ocean, a large part is integrated by the sea water when it is in contact with the air, a small part is produced by marine plants, after the sea water freezes, the sea water can not be in contact with the air, the oxygen content is inevitable, without sufficient oxygen, the death of marine animals is difficult to avoid, whales and other animals that breathe by the lungs are dead faster, the death of a large number of marine animals will definitely cause marine pollution, the ocean will become a pool of stagnant water, A pool of stagnant water that spans the globe. Marine animals that do not die of lack of oxygen may eventually die of starvation, because when the sea freezes, the activity of ocean currents will inevitably weaken, and without the surge of ocean currents, microorganisms, plankton and other bait will not be able to float in the water, and fish may starve to death without food.