Soil Properties Quiz

What is the texture of soil with a high sand content?

• Smooth and sticky

• Gritty and loose

• Clumpy and firm

• Soft and friable

Which method involves creating a ribbon to determine soil texture?

• Qualitative measurement

• Soil pH testing

• Quantitative analysis

• Cation exchange capacity

How does a soil texture triangle help in soil classification?

• By calculating soil density

• By identifying soil texture class

• By determining soil color

• By measuring soil pH

What is the relationship between soil porosity and permeability?

• Porosity affects permeability but not always directly

• Porosity and permeability are unrelated

• Lower porosity always means higher permeability

• Higher porosity always means higher permeability

Which soil type is least permeable?

• Gravel

• Sandy loam

• Fine sand

• Clay

What are Peds in soil structure?

• Soil nutrients

• Secondary units formed by soil particles

• Primary soil particles

• Soil moisture levels

Which soil structure is best for plant growth?

• Platty

• Prismatic

• Blocky

• Granular

What is cation exchange capacity (CEC)?

• The ability of soil to retain water

• The ability of soil to exchange nutrients

• The ability of soil to resist pressure

• The ability of soil to maintain pH balance

How does soil pH affect plant growth?

• It changes soil texture

• It influences soil structure

• It affects nutrient availability

• It determines the soil's color

What happens to hydrangeas in low pH soil?

• They turn pink

• They turn blue

• They grow taller

• They wilt