Question

Why has the perennial system of irrigation replaced the basin system of irrigation for farmers near the Nile River?

Answer 1

http://answers.yahoo.com/question/index?qid=20110531023538AAjucT4

Answer 2

try and use this 4 help

Answer 3

Basin systems usually allow for only one crop to be harvested, while irrigation allows a multitude of crops, I believe.

Answer 4

I can't school system has it locked down

Answer 5

Thank you guys

Answer 6

-_- oh this is ur answer The perennial system allows for the planting of multiple crops while the basin system only allows for the planting of one main crop.

Answer 7

No problem!
Welcome to Openstudy :)

Answer 8

im 100% sure im a history geek

Answer 9

im giving her a medal 4 asking and yes Welcome to OS