1. Answer the following on the handout
Identify one biome that is characterized by soil that is rich in humus. Describe how humus originated in the soils of this biome, and TWO ways that humus improves soil conditions for plant growth.

2. Review for Mock
Identify one biome that is characterized by soil that is rich in humus. Describe how humus originated in the soils of this biome, and TWO ways that humus improves soil conditions for plant growth.

3. Answer
Deciduous forest: tropical/seasonal and temperate. Humus originated here b/c of plant & animal materials decomposition. Humus improves soil conditions by providing nutrients/fertility for plants and soil organisms and helps topsoil hold water.