because their escape velocities are not sufficient to hold back the molecules of other constituents(ex. nitrogen oxygen etc.)
Space does not have an atmosphere. It is generally considered a vacuum. Planets and some moons have atmospheres.
the outer planets are gaseous and the inner planets are not
air and gasses and for some no atmosphere
The property that controls the quantity of atmosphere in planets is the planet's gravity. A planet's gravitational force is responsible for holding its atmosphere in place. The stronger the gravity, the more atmosphere a planet can retain. Conversely, lower gravity can result in a thinner or less substantial atmosphere.
None of the planets in our solar system have an atmosphere that is breathable by humans. The only known celestial body with a breathable atmosphere is Earth.
The other planet's are too hot or too cold and don't have an atmosphere, therefore killing everything.
No
cells
A planet's atmosphere doesn't have strength.
yes
Earth's atmosphere has a unique composition compared to other planets. It contains a significant amount of oxygen, which supports the existence of complex life forms. Additionally, Earth's atmosphere has an ozone layer, which protects the planet from harmful ultraviolet radiation. Lastly, Earth's atmosphere is denser than most other planets, allowing for the regulation of temperature and the retention of water on its surface.
Meteoroids are small enough that they will usually disintegrate when they enter a planet's atmosphere. Mercury has no atmosphere to speak of, and so it is not shielded in this way. Larger asteroids still do strike other planets.
Earth has an ozone layer in atmosphere. It is present in the stratospheric region. Other planets which have oxygen in their environment might have ozone.Some planets like earth do. Others might have.
Mars has an atmosphere, although it is much thinner than Earth's, and experiences seasons similar to Earth due to its axial tilt. This results in temperature variations and changes in weather patterns on the planet.
Not all planets have wind. Wind is caused by the movement of gases in an atmosphere, so planets without a significant atmosphere, like Mercury or the Moon, would not have wind. Additionally, the intensity and frequency of wind can vary greatly depending on factors such as atmospheric composition, temperature gradients, and surface features.
The planets' own gravity has made them spherical. Also there are other effects such as their ability to retain an atmosphere, etc. The Sun's gravitycauses the orbits of the planets.
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