1 / 20

What 2 layers make up the topsoil?

What 2 layers make up the topsoil?. Horizon O and horizon A make up topsoil. What layer is made up of partly weathered rock?. Horizon C is composed of partly weathered rock. How does material move from horizon A to horizon B?.

selima
Download Presentation

What 2 layers make up the topsoil?

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. What 2 layers make up the topsoil?

  2. Horizon O and horizon A make up topsoil.

  3. What layer is made up of partly weathered rock?

  4. Horizon C is composed of partly weathered rock.

  5. How does material move from horizon A to horizon B?

  6. The process of leaching moves material from horizon A to horizon B.

  7. What do horizon A and horizon B have in common?

  8. Both horizon A and horizon B have decayed organic material called humus.

  9. Where does the material in horizon C come from?

  10. The partly weathered rock in horizon C comes from unweathered parent rock.

  11. What is the composition of horizon O?

  12. Horizon O is composed of leaf litter and other organic matieral.

  13. In what horizon is there very little organic material?

  14. Horizon C had very little organic material.

  15. What is the composition of horizon R?

  16. Horizon R is composed of unweathered parent material.

  17. How are horizon A and horizon C different?

  18. Horizon A is rich in organic material and horizon C has very little organic mateial.

  19. Why do plants grow well in horizon A?

  20. Plants grow well in horizon A because it is rich in organic material and nutrients.

More Related