UNIVERSE
METEOROIDS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Craters are cleared by erosion.
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Large meteoroids do not hit Earth.
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Most meteors burn in our atmosphere.
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The moon has a thinner atmosphere.
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Detailed explanation-1: -Why does the Moon have so many craters while Earth has so few? On Earth, impact craters are harder to recognize because of weathering and erosion of its surface. The Moon lacks water, an atmosphere, and tectonic activity, three forces that erode Earth’s surface and erase all but the most recent impacts.
Detailed explanation-2: -One reason is that the Moon and Mercury have little to no atmosphere. The presence of an atmosphere helps objects that are going to hit the surface to disintegrate or burn out. This means that when these objects hit the surface, they are too small to cause any considerable craters.
Detailed explanation-3: -In general, because of its larger size and higher gravity, about twenty asteroids strike Earth for every one that strikes the Moon, though large impacts on either body are rare.