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2.3.2 Scarce craters

As you have just seen, about a hundred meteoroid impacts onto the surface of the Moon are detected every year. Each one of these will produce a crater. Suggest and discuss in the forum [Tip: hold Ctrl and click a link to open it in a new tab. (Hide tip)] reasons why craters formed by meteoroid impact are so rare on the surface of the Earth.

Figure 36 Lake Manicouagan seen from space: the partially lake-filled eroded remnants of a 100 km diameter, 214 million year old impact crater in Quebec, Canada.

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