The footprints left on moon remain forever because there is no one to walk above them again and the astronauts walk on them for once! that is the reason they remain forever.
Answer: The first footprints put on the moon will probably be there a long, long time — maybe almost as long as the moon itself lasts. Unlike on Earth, there is no erosion by wind or water on the moon because it has no atmosphere and all the water on the surface is frozen as ice.
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The footprints left on moon remain forever because there is no one to walk above them again and the astronauts walk on them for once! that is the reason they remain forever.
Answer: The first footprints put on the moon will probably be there a long, long time — maybe almost as long as the moon itself lasts. Unlike on Earth, there is no erosion by wind or water on the moon because it has no atmosphere and all the water on the surface is frozen as ice.
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