What attracted early settlers to the nile vally

If one thinks illegal immigrants should become american citizens, should they become american citizens automatically or should there be a waiting period? if there should be a waiting period, explain why.

What side of the american civil war would you choose to fight for and why

Iwill arward ! , i if po≅ pr, uo≅ ur, prove: ∠o ≅ ∠r. fill in the blanks: draw segment ≅ uo ≅ po≅ △oup ≅ △