why have fewer craters survived on earth?

Answer 1

You know, I'll bet you could come up the answers for yourself.
But I'm here and I'm in a typing mood, so here goes.

Weather can erase craters - wind-blown sand and dirt, rain, lightning, high winds
Geological activity can erase craters - movement of tectonic plates, volcanoes and earthquakes
Plant life can erode craters - plants will overgrow a crater and break down the structure, similar to how ivy will tear out the mortar between bricks on a wall or trees will take over and erase hills and valleys
Animal life can erode craters - animals that burrow will destroy earth structures, herds roaming across the land can destroy surface features including craters
Rain and groundwater can erase craters - fill in the crater and therefore hide it, and erode the edges of the crater over time.
Our atmosphere causes many meteors to vaporize before they strike the surface.
About 70% of the planet is covered in ocean, so statistically about 70% of the meteors that make it through the atmosphere land in the ocean and leave no trace.

All these causes are unique to earth (as far as we know) as no other planet or any moon in our system has so many dynamic forces at work to reshape and resurface the planet.
Some of Jupiter's and Saturn's moons have icy surfaces that seem to cover huge oceans underneath, and those moons show very few craters - likely any craters formed are erased due to resurfacing by the ice. And Jupiter's moon Io has a lot of volcanic action that is resurfacing that moon.
Saturn's moon Titan has methane weather that seems to have a similar effect as our weather has on earth. But nowhere else is there life and a huge planetary ocean to do all this in one place.

Answer 2

We see less evidence of craters on Earth's surface compared to other rocky planets/moons thanks to our atmosphere.

Our atmosphere helps to burn up meteors while moving through and the dust and fragments that end up hitting the Earth are not large enough to create impact sites. It has been rare occasions in the history of the Earth that large meteorites have hit.

Another reason... Our atmosphere allows for weather, which is a major cause of erosion. Erosion, along with plant and animal (including us) activity has "erased" much of the evidence of impact sites.

Now compare this to the atmosphere of Mars... very thin - almost nonexistent. Our Moon is considered to not have an atmosphere. Therefor meteors don't burn up while moving through. Also, once the crater is made, there's no weathering or plant/animal activity to alter the surface.

Answer 3

earth has a feature of covering all holes present on it surface.
you can try this .
remaining craters will be filled in due coarse of time.
i m not joking.

Answer 4

Geologic processes?

Answer 5

Climate and erosion. They just get wiped out.

Answer 6

Weathering and we do have an atmosphere.