Question

Which of the following horizons generally contains the most humus?
1)A horizon
2)B horizon
3)O horizon
4)D horizon

Answer 1

Answer:

B horizon is the answer

Answer 2

Answer:

1. A horizon

Explanation:

The A horizon is considered the topsoil and contains inorganic and organic material called humus. This is the layer that supports agriculture. Areas with thin A horizons are often in deserts, tundra, and coniferous and tropical rain forests. Areas with thick A horizons are often grasslands, which can be used for agriculture, and temperate deciduous forests.