- The biggest animals in the world
The world of nature is too magical and surprising. It is quite interesting to analyze the curiosities of the creatures t...
This layer is poor in mulch, but it has many nutrients, that is, substances that can be used as food for animals and plants. These nutrients are filtered from the top layer. In the middle layer there are pieces of rocks and tree roots.
Bibliography: Intermediate layer of soil. Microsoft® Encarta® 2009 [DVD]. Microsoft Corporation, 2008.
June 18, 2019