Explanation:
A nomad (Middle French: nomade "people without fixed habitation") is a member of a community without fixed habitation which regularly moves to and from the same areas. Such groups include hunter-gatherers, pastoral nomads (owning livestock), and tinkers or trader nomads.
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The answer is
A
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Earth's gravity pulls matter downward, toward its center. It pulls precipitation down from clouds and pulls water downhill.
If the coordinates of point A are (x, y ) the coordinates of point A´ after rotation will be (-y, x)
Example: A ( 2,3 ) and A´( -3, 2 )
