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 | hey boss why does Mercury show a much wider range of temperatures than the Earth does? | |
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| because the earth has an atmosphere to protect it from heat and mercury doesnt. | |
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| so what does the surface of Mercury tell us about the history of the planet? | |
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| well like our moon it has no atmosphere and cant stop asteroids from hitting its surface, and there are alot of craters which means mercury has be inactive for billions of years. | |
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| so why is mercury so dense professor? | |
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| it so dense because 70% of the surface is made out of metallic material and 30% is made from silicate material. | |
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