What makes the skin type of a person different from the other?Explain.

Human skin color ranges from the darkest brown to the lightest hues. Differences in skin color among individuals is caused by variation in pigmentation, which is the result of genetics. (inherited from one's biological parents) . the exposure to the sun, or both. Differences across populations evolved through natural selection, because of differences in environment, and regulate the biochemical effects of ultraviolet radiation penetrating the skin.

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The  ancient egyptians  who  built the pyramids  may have been  able  to move massive stone blocks across the desert by wetting the sand in front of a contraption  built  to pull the heavy objects

I'm going to go with 1,982 feet because of all of the ice.                                               ps its this is not the answer go with d 6,500.