Would someone please Briefly explainthis Quastion for me.?

Question

Why Mercury, Venus, and the Moon do not have significant erosion. Relate erosional activity to planetary size and distance from the Sun.

Answer 1

Venus does have some erosion but not as much as Earth or Mars. Some Erosion is caused by the atmosphere a planet has and more specifically the activity of that atmosphere. On Earth, wind and rain wear down mountains over millions of years. On Mars there is wind and dust storms that do the same. The atmosphere on Venus is extremely dense and very sluggish at the surface so there is erosion but it's very slow. Mercury and the Moon do not have atmospheres so there is no erosion.

There is also erosion caused by liquid running over the surface, rivers for example. A planet or moon needs to have an atmosphere to have this feature.

It takes a certain amount of gravity to hold an atmosphere in place. Mercury is almost big enough but has the add disadvantage of being closer to the Sun which keeps it hot enough to boil off any atmosphere. The Moon is simple to small to hold on to an atmosphere.

Answer 2

Venus does have some erosion, from the effects of wind (it has a thick atmosphere that can be quite active).

If you think about Mercury and the Moon, what are they missing? They don't have an atmosphere, right? They don't have life, right? They don't have wind or rain or geological activity, right?
Well, that's why there is so little erosion on them - nothing to erode them.
On Earth, erosion occurs because of life, rain, wind, snow, ice, earthquakes, and volcanoes.

There is only an indirect relationship between erosion and the distance from the sun - planets closer to the sun have less chance of keeping an atmosphere that can contribute to erosion.
But distance isn't the primary factor - mass of the planet is. The more massive, the better it is able to hold onto an atmosphere.

Answer 3

I never heard of "Quastion".

Mercury and the Moon have little erosion because they have no air or geological activity. And who said Venus has no significant erosion? I am pretty sure it does have significant erosion.

Answer 4

i would rather sasuke paired with rock lee. thats how much i hate it XD karin is just a bag of douche, she needs to go die and stop friggin molesting sasuke... uchihacest is so much better lol but if sasuke and karin get together in the manga... im assassinating kishimoto. then ill burn his house, and kill his dog if he has one.... :D

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