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Why have craters left by asteroid impacts on earth disappeared?
Wiki User
∙ 10y ago
Asteroid impact craters are destroyed by weather, erosion, and earthquakes.
Wiki User
∙ 10y ago
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Do craters cover most of the Earth?
No. Earth has relatively few impacts craters.
Why do you think there are millions of impact craters on the moon and so few on Earth?
The Earth has had far more asteroid and meteorite impacts than the moon. Impact craters on Earth however are eroded by the atmosphere and water and also filled in by water and sediment. Since the moon has next to no atmosphere craters tend not to erode so they will always be visable.
What effects does a asteroid make when it hits the earth?
ey big back!
Can a asteroid damage a planet?
An asteroid can indeed damage a planet when it strikes it. It is possible that an asteroid strike resulted in the dying off of the dinosaurs on Earth. There are certainly some large craters on Earth that are suggestive of asteroid strikes.
How many impacts craters and basins have been found on earth?
Earth Impact Database, a website concerned with over 170 scientifically-confirmed impact craters on Earth.
Why does the moon have craters an the earth does not?
The Earth does have craters, but because of the seas and vegetation on land, they are not as noticeable. However there are some that are very noticeable, like the famous one in Arizona. Craters on Earth and the Moon are caused by impacts of meteorites.
Why does earth's moon preserve all the impacts it has had?
Theres no storms, rain or anything that effects it so it retains the craters no weather to destroy the craters.
Why have very old craters on the moon not be erased as similar craters on earth have been?
Unlike Earth, the moon does not have air, water, glaciers, or plate tectonics to erase craters. The only forces that significantly alter the moon's surfaces are impacts that form new craters.
Why does earth lack craters?
Earth does have impact craters, but it has much few than the moon or Mercury and many of them are not readily visible. The main reason is that Earth has many active geologic processes that renew and change its surface, burying and destroying impact craters. If an impact crater on Earth is clearly visible then it probably formed quite recently in geologic history. Many of the impact craters on the moon and Mercury are billions of years old, dating to when the solar system was young and large asteroid impacts were far more common than they are now. Very little of Earth's crust from that time remains intact. By contrast craters on Earth that are tens of millions of years old are not readily visible.
What might be responsible for most of the craters on earth's moon?
The vast majority of lunar craters are caused by meteor impacts.
The name for shapes of the moon seen from earth?
They are called maria. They were formed when asteroid and comet impacts on the moon exposed the mantle of molten rock. The lava flooded into and over the craters and hardened in vast fields forming the dark spots we see when we look up at the moon.
Why have scientists found few impact craters on Earth?
Because there are few erosion processes on the Moon to erase the craters. The Earth has had many more impacts, but those in the ocean were covered up and those on land were eroded away.
