Soils

What percent of soil is air?

• 25%

• 45%

• 5%

What percent of soil is water?

• 25%

• 45%

• 5%

What percent of soil is mineral matter?

• 25%

• 45%

• 5%

What percent of soil is organic matter?

• 25%

• 45%

• 5%

What is the largest soil particle?

• Sand

• Silt

• Clay

What is the medium size soil particle?

• Sand

• Silt

• Clay

What is the smallest soil particle?

• Sand

• Silt

• Clay

Which of the following is the BEST pH for soil?

• 9.7

• 1.2

• 6.4

• 3.9

Which of the following is NOT soil forming factor?

• Parent Material

• Roadways

• Topography

• Climate

Techniques used to try and limit soil erosion is known as _____.

• Soil Survey

• Soil Profile

• Soil Conservation

• Soil Practice