198k views
4 votes
The following table was given to Candoe by her teacher. She couldn't find answer to some questions. Help her in completing the table.

Layer name Horizon name

1. Organic layer 1. Horizon O

2. Top soil 2. Horizon A

3. Sub soil 3. Horizon B

4. Weathered rock particles 4. Horizon C

5. Bed rock 5. Horizon R

1 Answer

5 votes

Here is the completed soil horizon table:

Layer name Horizon name

Organic layer 1. Horizon O

Top soil 2. Horizon A

Sub soil 3. Horizon B

4.Weathered rock particles 4. Horizon C

Bed rock 5. Horizon R

The soil horizon names are:

O horizon: This is the organic layer consisting of accumulating plant litter and decomposing organic matter.

A horizon: This is the top soil consisting of mineral material mixed with organic matter. It has the highest concentration of organic matter.

B horizon: This is the subsoil consisting of predominantly mineral material. It has less organic matter than the A horizon.

C horizon: This consists of weathered bedrock with accumulated mineral material. It contains few organic materials.

R horizon: This is the unweathered bedrock material beneath the soil layers.

So each soil layer is named according to its composition and properties using horizon names from O to R

User Purplemonkey
by
8.9k points

No related questions found