In the geography of the moon, a mare is a large depression (think sea) and a rille is a groove in the surface (think canal or channel)
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A channel on the moon is called a rille. Rilles are long, narrow depressions that resemble channels or valleys and are believed to have formed from ancient lava flows or tectonic processes.
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The difference between the rotation and revoulution is that rotation is the spiinning of the planet on its axis and revoulution is the orbiting of the planet around the sun.
The average distance between the Earth and the Sun is about 150 million kilometers. This distance varies due to the elliptical shape of the Earth's orbit.