Nubia's geography was different from Egypt because Nubia had tall cliffs of granite rock and there soil was rockier. -- Nubians language was different from <span>Egyptians; Egyptians used Hiroglypics, and Nubians used Meroitic.
http://www.answers.com/Q/How_was_the_geography_of_Nubia_different_from_Egypt?#slide=4
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When a relationship has lasted for a longer period of time than 3 years, there is a sign of trust and loyalty between that couple. The couple is calm about there relationship because they are glued to each other emotionally.
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Factor payments and profits
A; cold air molecules collide to generate heat energy
