Answer:
Transport of sediments causes them to become rounder as their irregular edges are removed both by abrasion and corrosion. Beach sand becomes highly rounded due to its endless rolling and bouncing in the surf.
Answer:
<u>This is a Topographic map.</u>
Explanation:
<em>Topographic maps are a detailed record of a land area, giving geographic positions and elevations for both natural and man-made features. They show the shape of the land the mountains, valleys, and plains by means of brown contour lines (lines of equal elevation above sea level).</em>
Hoped this helped.

Answer: "oasis" .
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I dont c descriptions but heres the answer ;)
<span>desertfication is the expanding of deserts, and the shrinking of other ecosystems ;)</span>
Explanation:
long term and lasting progress