Podcast
Questions and Answers
What is the major source of nutrient elements in soil?
What is the major source of nutrient elements in soil?
- Water
- Pore spaces
- Organic matter
- Solid mineral matter (correct)
Which component of soil occupies the pore spaces and provides oxygen for root respiration?
Which component of soil occupies the pore spaces and provides oxygen for root respiration?
- Solid mineral matter
- Air (correct)
- Organic matter
- Water
What is the main function of organic matter in soil?
What is the main function of organic matter in soil?
- To indicate nitrogen status of soil
- To promote the formation of aggregates (correct)
- To provide oxygen for plant respiration
- To carry nutrients to the proximity of roots
Which component of soil is needed by plants in large amounts for their metabolic functions?
Which component of soil is needed by plants in large amounts for their metabolic functions?
What is the composition of air in the pore spaces of the soil?
What is the composition of air in the pore spaces of the soil?
What is the basic sampling unit in soil surveys?
What is the basic sampling unit in soil surveys?
Which soil horizon is characterized by being leached of clay, minerals, and organic matter?
Which soil horizon is characterized by being leached of clay, minerals, and organic matter?
What is the layer in soil called that is mostly organic matter like decomposing leaves?
What is the layer in soil called that is mostly organic matter like decomposing leaves?
What does a polypedon consist of?
What does a polypedon consist of?
Which part of the soil profile is rich in minerals that leached (moved down) from the A or E horizons?
Which part of the soil profile is rich in minerals that leached (moved down) from the A or E horizons?
What is the mass of rock at Earth’s surface from which the soil developed called?
What is the mass of rock at Earth’s surface from which the soil developed called?
What is soil primarily composed of?
What is soil primarily composed of?
Which of the following is NOT a soil property?
Which of the following is NOT a soil property?
What farming practice is considered destructive to soil fertility?
What farming practice is considered destructive to soil fertility?
Which factor does NOT condition the properties of soil?
Which factor does NOT condition the properties of soil?
What is the function of soil in relation to plant growth?
What is the function of soil in relation to plant growth?
Which of the following is part of the field of study of Soil Science?
Which of the following is part of the field of study of Soil Science?
What is the soil separate with a diameter range of 2-0.05 mm and a 'course gritty' characteristic feel?
What is the soil separate with a diameter range of 2-0.05 mm and a 'course gritty' characteristic feel?
Which soil separate has a 'smooth powdery' characteristic feel and a diameter range of 0.05-0.002 mm?
Which soil separate has a 'smooth powdery' characteristic feel and a diameter range of 0.05-0.002 mm?
What is the main mineral source found in the sand soil separate?
What is the main mineral source found in the sand soil separate?
Which soil property refers to the space within the soil that is not occupied by solid particles?
Which soil property refers to the space within the soil that is not occupied by solid particles?
What is the term used for the availability of water in the soil under various conditions?
What is the term used for the availability of water in the soil under various conditions?
What is the result of hydration on minerals?
What is the result of hydration on minerals?
In oxidation, what happens to the iron in minerals?
In oxidation, what happens to the iron in minerals?
What is carbonation in soil formation?
What is carbonation in soil formation?
Which factor affects the shape or contour of the land surface?
Which factor affects the shape or contour of the land surface?
What is the role of steep slopes in soil formation?
What is the role of steep slopes in soil formation?
How do sedimentary or residual parent materials form soil?
How do sedimentary or residual parent materials form soil?
