12 Questions
Which physical property of soil is determined by the amount of sand, silt, and clay present in a soil sample?
Texture
What is the term for the breakdown of dead plants and animals in soil?
Humus
How can the soil triangle be used to determine soil texture?
By calculating the percentage of sand, silt, and clay in the soil
Which of the following best describes soil cementation?
The binding of soil particles
What is the main factor that determines soil porosity?
The size of soil particles
What is the effect of soil temperature on crop growth?
Crops grow easier and faster in warm soils
Which of the following best describes flocculation in soil?
The attachment of cations to negative charges on soil colloids
What is the ideal percentage of soil pores in soil?
Around 50%
What does the color of soil indicate?
The nutrient content of the soil
Which of the following is NOT a physical property of soil?
Humus
What is the correct order of mineral particles in soil from largest to smallest?
Gravel, coarse sand, fine sand, silt, clay
Which of the following best describes soil structure?
The pore space within an aggregate
Test your knowledge on the physical properties of soil mineral matter and organic matter in this quiz. Explore the concepts of texture, structure, porosity, chemistry, and color, and learn about the different sizes of mineral particles.
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