Answer:
The best answer is A, "Mostly decayed matter with tiny rock particles.
Explanation:
Sand is one of the poorest soils, it has very, very low water holding capacity, as well as nutrients. I found the answer because we know it is not B, because sand does not have large rock particles, and we know that it is not c because sand has a very low water holding capacity. And we know that it is not D because it is kinda obvious that sand is not only found on the beach.
Really hope this helps! If I got it right can I have Brainliest?
