Earth Science: Soil Properties and Water Movement

What are the two main factors that influence groundwater infiltration?

• Porosity and capillarity

• Sorting and packing

• Permeability and capillarity

• Porosity and permeability

Which type of soil fragment shape tends to have higher porosity?

• Flat fragments

• Angular fragments

• Round fragments

• Irregular fragments

How does sorting affect the porosity of soil?

• Well-sorted soils have low porosity

• Sorting does not affect porosity

• Poorly sorted soils have high porosity

• Well-sorted soils have high porosity

What is the relationship between packing and porosity?

• Loosely packed soils have low porosity

• Loosely packed soils have high porosity

• Tightly packed soils have high porosity

• Packing does not affect porosity

What is permeability in the context of soil?

• The ability of soil to support plant growth

• The ability of soil to absorb nutrients

• The ability of water to pass through soil

• The ability of soil to retain water

Which factor does NOT influence both porosity and permeability?

• Color of particles

• Sorting of particles

• Packing of particles

• Shape of particles

What is capillarity in soil?

• The sideways movement of water

• The upward movement of water

• The downward movement of water

• The evaporation of water from soil

How does particle size affect capillarity?

• Larger particles increase capillarity

• Smaller particles decrease capillarity

• Smaller particles increase capillarity

• Particle size does not affect capillarity

Which soil property is most important for plant water uptake?

• Porosity

• Permeability

• Capillarity

• Sorting

What is the main takeaway regarding groundwater characteristics?

• They are unrelated to soil properties

• They are influenced by porosity, permeability, and capillarity

• They only depend on soil color

• They are constant across all soil types