The first settlements to use the nile as a transportation route for trade were and

a.

nubia . . the levant

b.

upper egypt . . the levant

c.

lower egypt . . nubia

d.

upper egypt . . lower egypt

D - Upper Egypt and Lower Egypt

Explanation:

The Egyptians were the first to use the Nile both as transportation and to trade between regions as most of their major cities were located along the Nile River.

hello,

answer: a federal government has final authority on interstate/inter provincial  and international affairs, a confederation is one where the central/national government or authority is governing body what does not have final say over the same matters. hopefully this and i will try again if you don't like this answer : )

best of luck!