Fresh, Fertile Dirt on the Outer Layer of Earth

This page is the CodyCross answer for the clue below from Health and Fitness, Group 2133, Puzzle 1 (Surfing Lessons).

Question is: Fresh, Fertile Dirt on the Outer Layer of Earth

and the answer is: TOPSOIL

Word Meaning:

TOPSOIL — (agriculture, horticulture) The upper layer of soil, typically most fertile and in which it is the easiest to start new plants.

Definitions from Wiktionary.