<span>The answer is Letter D. It is written in a tone that is appropriate for an explanatory essay than the other letters. Since the letters a,b,c, is informal for an explanatory essay. Letter D. explains the Neolithic Revolution with formality and proper use of words, than the other letters.</span>
the planet with those characteristics is Mercury
The rivers led to fertile soil and protection for people in the area so it was a prime place for settlement. Example; Egypt and the Nile.