you can fly on your mom who is a Niger
it is 2600 miles
yes, it also runs through Mali, Nigeria, and a few others.
Yes, Niger or Nigér depending on your pronounciation is named after the River Niger
just look at the 3 main causes of poverty and specify to that region if need be. unemployment, education and age. you can also look at the availability of resources (eg. food, access to clean water...