How does the atmospheres of the Moon and Mercury compare?
Despite their 'airless' appearance both Mercury and the Moon have thin tenuous atmospheres. With no detectable gases the Moon appears to be atmosphere-free. The Moon as seen from a view above the majority of Earth's atmosphere. … The radiation and solar wind fluxes are similar between the Earth and Moon.
How do the atmosphere of the Moon and Mercury compare quizlet?
In size, Mercury is intermediate between: the Moon and Mars. How do the atmospheres of the Moon and Mercury compare? Neither body has a permanent atmosphere.
How does Mercury differ from the Moon?
After all, the two bodies have significant differences: unlike the moon, Mercury has a global magnetic field; its density is higher; there is an abundance of volatile elements such as sulfur; its surface contains much less iron, particularly in its crustal silicates — which indicates that the processes deep inside both …
How does the surface of Mercury compare to that of the Moon and what are some distinctive features?
Surface. Mercury's surface resembles that of Earth's Moon, scarred by many impact craters resulting from collisions with meteoroids and comets. Craters and features on Mercury are named after famous deceased artists, musicians, or authors, including children's author Dr.
How are surfaces of Mercury and the Moon similar different Why quizlet?
Mercury is often compared to the moon because its surface looks similar to the backside of the moon (the main source of erosion for both is meteorite impact). Both have weak magnetic fields, but mercury doesn't have any Maria like the moon does. Also, the density of the moon is much less than that of Mercury.
How is the planet Mercury similar to Earth’s Moon?
Mercury has a weak magnetic field (compared to Earth). Like the moon, Mercury has many impact craters. How is the planet Mercury similar to Earth's moon? Their surfaces both appear heavily cratered by impacts and their lowland regions were flooded by ancient lava flows.
Why is the surface of Mercury often compared with that of the Moon?
Mercury is often compared to the moon because its surface looks similar to the backside of the moon (the main source of erosion for both is meteorite impact). Both have weak magnetic fields, but mercury doesn't have any Maria like the moon does. Also, the density of the moon is much less than that of Mercury.
Which of these criteria best explains why the Moon and Mercury do not have atmospheres?
Concept of escape speed to explain why the Moon and mercury have no atmospheres. More massive objects have better chance of keeping atmospheres bc the more massive an object, the greater the escape speed.
Why do the Moon and Mercury not have atmospheres?
The hotter the atmosphere, the more molecules can escape. The smaller the object, the lower the gravity, so the escape velocity is lower and it is harder to retain an atmosphere (Moon and Mercury). Finally, you can lose atmosphere to the surface.
How is the surface of Mercury similar to the surface of Earth’s Moon?
Both Mercury and the moon have surfaces, or crusts, composed almost entirely of rock and pocked with craters. Unlike Earth, which has an element-rich atmosphere in which incoming meteorites often burn, Mercury and the moon have thin atmospheres, called exospheres, that hold little gas and offer little insulation.
In what way does the surface of Mercury differ from the Moon’s surface quizlet?
Mercury is often compared to the moon because its surface looks similar to the backside of the moon (the main source of erosion for both is meteorite impact). Both have weak magnetic fields, but mercury doesn't have any Maria like the moon does. Also, the density of the moon is much less than that of Mercury.
What is the atmosphere of Mercury?
Atmosphere and Weather: Mercury has an extremely thin and non-protective atmosphere. For all practical purposes, the atmosphere is nearly a vacuum. The sparse atmosphere is primarily composed of oxygen, sodium and hydrogen. Mercury's atmospheric atoms are continuously being lost to space.
Which of the following is a way that the planet Mercury is similar to the Moon quizlet?
Which of the following is a way that the planet Mercury is similar to the Moon? Its surface is heavily cratered.
Why do the Moon and Mercury have so little atmospheric gas?
The hotter the atmosphere, the more molecules can escape. The smaller the object, the lower the gravity, so the escape velocity is lower and it is harder to retain an atmosphere (Moon and Mercury). Finally, you can lose atmosphere to the surface.
Why does Mercury not have an atmosphere?
There are two main reasons. First, Mercury is small and doesn't have much gravity so it's hard to hold onto an atmosphere. Second, Mercury is close to the Sun so any atmosphere gets blasted away by stuff being blown off the Sun.
What is the atmosphere of the moon?
The three primary gases in the lunar atmosphere are neon, helium, and hydrogen, in roughly equal amounts. Small amounts of methane, carbon dioxide, ammonia, and water were also detected. In addition, argon-40 was detected, and its abundance increased at times of high seismic activity.
Which of the following is a way the planet Mercury is similar to the Moon?
Like the moon, Mercury has many impact craters. How is the planet Mercury similar to Earth's moon? Their surfaces both appear heavily cratered by impacts and their lowland regions were flooded by ancient lava flows.
Why do the moon and Mercury have so little atmospheric gas?
The hotter the atmosphere, the more molecules can escape. The smaller the object, the lower the gravity, so the escape velocity is lower and it is harder to retain an atmosphere (Moon and Mercury). Finally, you can lose atmosphere to the surface.
What is the difference between the atmospheres of Mercury and Earth?
Mercury has a low gravity and receives large gusts of solar winds from the nearby Sun. Earth's atmosphere contains nitrogen, oxygen, argon, carbon dioxide, and a few other molecules. Mercury, on the other hand, contains hydrogen, helium, oxygen, sodium, calcium, potassium, and water.
Which of the following is a way that Mercury is similar to the Moon?
Mercury is a planet much like the Moon. It has no atmosphere, and its surface is covered with circular im pact craters and huge, round basins. Most of Mercury looks much like the lunar highlands; apparently it was subjected to the same bombardment that shaped the Moon in primordial times.
Why is the surface of Mercury often compared with that of the moon?
Mercury is often compared to the moon because its surface looks similar to the backside of the moon (the main source of erosion for both is meteorite impact). Both have weak magnetic fields, but mercury doesn't have any Maria like the moon does. Also, the density of the moon is much less than that of Mercury.
Why do the moon and Mercury not have atmospheres?
The hotter the atmosphere, the more molecules can escape. The smaller the object, the lower the gravity, so the escape velocity is lower and it is harder to retain an atmosphere (Moon and Mercury). Finally, you can lose atmosphere to the surface.
Why do Mercury and the Moon lack an atmosphere?
Why do mercury and the Moon have almost no atmosphere? A – The gravity at their surfaces is low, so most gas molecules travel fast enough to escape the planet.
Does Mercury have an atmosphere?
Atmosphere and Weather: Mercury has an extremely thin and non-protective atmosphere. For all practical purposes, the atmosphere is nearly a vacuum. The sparse atmosphere is primarily composed of oxygen, sodium and hydrogen. Mercury's atmospheric atoms are continuously being lost to space.
Which of the following is a way that the planet Mercury is similar to the moon quizlet?
Which of the following is a way that the planet Mercury is similar to the Moon? Its surface is heavily cratered.
How are surfaces of Mercury and the moon similar different Why quizlet?
Mercury is often compared to the moon because its surface looks similar to the backside of the moon (the main source of erosion for both is meteorite impact). Both have weak magnetic fields, but mercury doesn't have any Maria like the moon does. Also, the density of the moon is much less than that of Mercury.
What is the atmosphere like in Mercury?
Atmosphere and Weather: Mercury has an extremely thin and non-protective atmosphere. For all practical purposes, the atmosphere is nearly a vacuum. The sparse atmosphere is primarily composed of oxygen, sodium and hydrogen. Mercury's atmospheric atoms are continuously being lost to space.
What is Mercury’s atmosphere like?
Atmosphere and Weather: Mercury has an extremely thin and non-protective atmosphere. For all practical purposes, the atmosphere is nearly a vacuum. The sparse atmosphere is primarily composed of oxygen, sodium and hydrogen. Mercury's atmospheric atoms are continuously being lost to space.
What is the atmosphere of the Moon?
The three primary gases in the lunar atmosphere are neon, helium, and hydrogen, in roughly equal amounts. Small amounts of methane, carbon dioxide, ammonia, and water were also detected. In addition, argon-40 was detected, and its abundance increased at times of high seismic activity.
How is Mercury’s atmosphere different from Earth?
Mercury has a low gravity and receives large gusts of solar winds from the nearby Sun. Earth's atmosphere contains nitrogen, oxygen, argon, carbon dioxide, and a few other molecules. Mercury, on the other hand, contains hydrogen, helium, oxygen, sodium, calcium, potassium, and water.