Which of the eight planets in the solar system has an atmosphere?

The atmosphere, also known as the atmosphere, is the air on the surface of the planet, and it is a circle of gas gathered on the surface of the planet under the influence of the planet's gravity. The atmosphere plays a protective role on the earth. Without the atmosphere, all living things on our planet could die. Then let's use constellation knowledge to reveal which of the eight planets in the solar system have atmospheres.

Q: Which of the eight planets in the solar system has an atmosphere? A: Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune.

Mercury Mercury doesn't actually have an atmosphere in the strict sense-it is estimated that its thin atmosphere is one trillion times thinner than the earth. Its gravity is about 38% of the earth's, so it can't keep most of the atmosphere. In addition, its proximity to the sun means that the solar wind can take away the gas on the ground. Particles from the solar wind, coupled with the evaporation of surface rocks caused by meteor impact, may be the biggest contributor to Mercury's atmosphere.

Venus Venus is similar to the earth in several aspects: its density, size, mass and volume are comparable. However, the atmosphere is the end of similarity. The atmospheric pressure is about 92 times of the Shanghai level of the earth, and the main gas is carbon dioxide, which is the result of previous volcanic eruptions on the surface of Venus. High in the atmosphere, the planet also has clouds of sulfur dioxide and sulfuric acid. There is a thick layer of carbon dioxide under these clouds, which has a strong greenhouse effect on the surface. As far as we know, the surface temperature of Venus is about 480 degrees Celsius, which is too high to support life.

The earth's atmosphere is mainly composed of nitrogen and oxygen, which is very important for life on earth. The composition of the atmosphere is the direct result of plant growth. Plants absorb carbon dioxide and expel oxygen through photosynthesis. Without photosynthesis, the proportion of carbon dioxide in the atmosphere is likely to increase greatly. The greenhouse effect caused by carbon dioxide is partly the result of infrared radiation absorbed by greenhouse gas molecules, and then radiated to the earth's surface and surrounding atmosphere. The greenhouse effect is different from global warming. It is a natural greenhouse effect, which is aggravated by human activities emitting more greenhouse gases into the atmosphere. Venus is an extreme example of the uncontrolled consequences of global warming!

Like Venus, the atmosphere of Mars is mainly composed of carbon dioxide. Due to the extreme greenhouse effect of Venus' high carbon dioxide content, the surface temperature of Mars is as high as 35? C seems very confusing. This is because the atmosphere of Mars is obviously thinner than that of Venus, so although the proportion of carbon dioxide is similar, the actual concentration is much lower. Dust in the atmosphere gives Mars a unique appearance.

Jupiter Jupiter is the first gas giant planet and the largest planet in the solar system. Interestingly, its atmosphere is very similar to the sun. Unlike the inner planet, Jupiter's atmosphere has no definite stopping point, and the liquid inside the planet begins to flow. Near one-third of Jupiter's core, the pressure is high enough for hydrogen to exist in the form of metal liquid, which can conduct electricity and form Jupiter's electromagnetic field. Jupiter's banded cloud system contains different amounts of ammonia, water, ammonia and sulfur compounds, and complex sulfur, phosphorus and carbon compounds.

Saturn and Jupiter are very similar. The upper cloud in Saturn's atmosphere is considered to be mainly composed of ammonia ice, in which the cloud composed of hydrogen sulfide ammonia and water is downward, and the sulfur in the atmosphere makes the ammonia cloud pale yellow. Saturn's moon Titan may contain the most interesting atmosphere in the solar system, which is the only nitrogen-rich atmosphere outside the earth. It is the only other object in the solar system that can determine the liquid on the stable surface, and it is also the only other object that will rain-although rain is liquid methane, not water, and it is estimated that every rain exists between specific positions on the surface for hundreds of years.

Uranus Uranus' atmosphere, like Jupiter and Saturn, is mainly composed of hydrogen and helium. However, a slightly higher methane level, especially in the upper atmosphere, will lead to more absorption of red light from the sun, which will cause the planet to appear blue-green. Uranus has the coldest atmosphere in the solar system, about -224? Its atmosphere contains more water ice than Jupiter and Saturn.

Like Uranus, the blue part of Neptune is the result of methane. However, because Neptune is dark blue, it is believed that some unknown components in the atmosphere also contribute to the color. Because Neptune's stratosphere contains more gaseous hydrocarbons than Uranus, its temperature is slightly higher. Neptune is also the strongest place in the solar system, with wind speeds as high as 600 meters per second.

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