U4: 4.2

Question 1

Identify three abiotic components of soil

Answer 1

Water, Parent Material, Nutrients

Question 2

Identify two biotic components of soil

Answer 2

Plant (roots), microorganisms

Question 3

Describe how weathering of parent material impacts soil formation

Answer 3

The breakdown of rocks into smaller pieces impacts soil formation

Question 4

Describe the process of soil erosion

Answer 4

Erosion deposits soil particles from other areas, adding to soil

Question 5

Describe the composition of the A horizon of soil

Answer 5

Layer of humus (decomposed organic matter), and minerals from parent material-has the most biological activity

Question 6

Explain a non-agricultural benefit that soil provides to humans

Answer 6

Soil breaks down organic material and recycles nutrients while also filtering water