PLEASE HELP ILL GIVE BRAINLIEST!! :(

Explanation:

The 9/11 Memorial in New York City is a national tribute of remembrance to the 3,000 culturally diverse victims of the terror attacks of September 11, 2001 and February 26, 1993. The 8-acre Memorial Plaza contains two massive granite reflection pools, North and South; 400 swamp white oak trees; and a museum of 120,000 sq ft. scheduled to open in September 2012. Each pool contains an infinity waterfall surrounded by bronze parapets stencil cut with victims' names, including the unborn. The ambiance of the plaza is tempered by the ongoing reconstruction of buildings destroyed and damaged during the September 11 attacks.

I hope that helped you! :)

i think its the outcome of people's preferences.

2686-2181 bce-- "egyptian civilization developed along the nile river in large part because the river’s annual flooding ensured reliable, rich soil for growing crops."

1069-664 bce-- "ancient egyptians developed wide-reaching trade networks along the nile, in the red sea, and in the near east."