Which planet has the highest oxygen content?

Oxygen is indispensable for human survival, and the reason why the earth is suitable for human survival is because it has enough oxygen for human survival. So are there any other constellations with oxygen? Let's use constellation knowledge to reveal which planet has oxygen. The planet with the highest oxygen content? Let's have a look!

Q: Which planet has the highest oxygen content? A: According to the current data, the oxygen content of the earth is the highest. Titan's atmosphere contains 98% oxygen, Titan has 70% oxygen, and Jupiter and Saturn in the solar system also contain oxygen (very little).

The earth's atmosphere did not contain oxygen at the beginning of its formation. The primitive atmosphere is reductive and full of methane, ammonia and other gases. Since the emergence of green plants on the earth, the photosynthesis of green plants has produced a lot of oxygen, which greatly increased the oxygen content on the earth; The appearance of atmospheric oxygen comes from two actions, one is the photolysis of water with abiotic participation, and the other is the photosynthesis with biotic participation. Biological photosynthesis has a great influence on the atmosphere. It causes the atmosphere to change from reducing atmosphere to oxidizing atmosphere. Hydrogen produced by photolysis of water can be oxidized into water and returned to the earth without spreading to outer space, thus preventing water loss on the earth. The increase of oxygen content improves the living environment of living things, which in turn promotes the prosperity of living things, including plants, forming a virtuous circle, and finally makes oxygen on the earth become a gas with a content second only to nitrogen. Shallow water photosynthetic oxygen-producing microorganisms appeared on the earth 2.7 billion years ago. After a while, they filled the atmosphere with oxygen. The data recorded this shift. There is oxygen on other planets. It's just a matter of how much. Because oxygen is one of the elements with higher content in the universe except hydrogen, helium and carbon. In the solar system, every planet (including their satellites) has oxygen. For example, there is oxygen on Mercury, the nearest to the sun. Mercury's atmosphere is extremely thin, and its density is one tenth of that of the earth's atmosphere. The composition is 42% helium, 42% sodium, 15% oxygen, and the rest is some trace gases. Because its atmosphere is too thin, it is generally believed that Mercury has no atmosphere. Titan is the only satellite in the solar system with a strong atmosphere, and its surface atmospheric pressure is about 1.5 times that of the earth. Titan's atmosphere is 98.44% nitrogen, which is the only star in the solar system rich in nitrogen except the earth. There are many different kinds of hydrocarbon residues (including methane, ethane, acetylene, propane, etc. ), and carbon dioxide and water vapor. Where there is water vapor, there is oxygen.

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