Answer:
I do not know if this is correct, but I think it is number 1, Voice uses a wider range of pitch and volume as compared to speaking. Hope it helped!
Explanation:
<span>B: The region experienced a surplus of food. - the best answer. Nile Valley was located near river Nile in Egypt. It was a flood plain defined like a heaven for farmers. There were perfect conditions for people to grow food and obtain water. The river was flooding created conditions to live like that.</span>
I believe the answer is B. Coal