How has the nile river been the lifeblood of north africa

 It is a north flowing river, and is on the north eastern continent of Africa.

Because Africa is a desert, especially to the North. Without the Nile, it's possible there might not have been life there. Also, there wouldn't be a bunch of stupid puns around how it sounds like denial.

i didn’t understand your question but archipelagos are groups of island hope this

Answer metamorphic rock;