Below you can find the This is the common term for the upper layer of soil rich in organic material that provides nutrition to plants Jeopardy Words Answer. The answer to This is the common term for the upper layer of soil rich in organic material that provides nutrition to plants has 7 letters. This clue belongs to the Agriculture category and is part of Jeopardy Word Level 1635. If you scroll near the bottom you will find other clues and answers part of level 1635