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Nemisis

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Q: What is Nemesis and what does it have to do with impact craters and extinctions on Earth?
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Large craters found on earth support the hypothesis that impact events have caused?

mass extinctions of animals and plants


What is the main reason that impact craters on the Moon last much longer than impact craters on earth?

Impact craters on the moon have no water/weather to erode the craters away, but on Earth the erosion erases the craters over time.


How many impact craters and basins have been found it on earth?

Earth Impact Database, a website concerned with over 170 scientifically-confirmed impact craters on Earth.


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 is the earth not covered with craters?

The earth is not covered with impact craters because weather and geological activity erodes the craters away over time.


How many craters Earth?

There are a huge number of craters on the Earth, including very small impact sites. There are about 65 named and documented craters on the planet.


Why do you see impact craters on mercury and the moon but not so much on earth?

Because there are not as many impact craters that you can see very well on Earth like there are on the Moon and Mercury.


What planet has craters made by meteorites?

Mercury, Venus, Earth, and Mars all have impact craters.


Why do you see many impact craters on the moon but not earth?

The Earth has weather patterns that have eroded most of the craters on Earth. The moon has no weather, therefore no erosion.


Why does the earth have little impact craters?

It does, you just have to go out and look for them.


Can you see craters on the moon from earth?

No. Most of the impact craters that have formed on Earth have been destroyed and buried by geologic processes, processes that the moon lacks. While some recent impact craters on Earth remain visible on the surface, they are too small to be seen from the moon.


Why have craters left by asteroid impacts on earth disappeared?

Asteroid impact craters are destroyed by weather, erosion, and earthquakes.