What do historians call the region in which civilization first emerged? The Fertile Crescent
The Persian Gulf
The Indus River Valley
The Bermuda triangle

Hi,

I think Indus River Valley is the answer.

Hope it helps you... pls mark brainliest

answer; /// i believe that the correct answer is (fossils);

the secretary of defense is the principal defense policy advisor to the president. under the direction of the president, the secretary exercises authority, direction, and control over the department of defense.

as you did not provide any choices for me to choose from to give you a direct answer, this is the only information i can provide.