18 Questions
What is the main source of energy for soil organisms?
Organic soil
Which type of soil increases the ability of soil to resist drastic pH changes?
Mineral soil
What occupies the pore spaces in the soil that are not occupied by water?
Soil air
Which gas is a principal component of atmospheric air but not a significant component of soil air?
Oxygen (O2)
What function does soil serve as a building material for roads and highways?
Foundation material
Which type of soil contains less than 20% organic carbon by weight?
Mineral soil
What is one of the major functions of soil mentioned in the text?
Absorbing domestic and industrial wastes
How does soil support plant growth according to the text?
By supplying water, air, and mechanical support to plant roots
What role does soil play in the production of household structures?
Supplying construction materials like clay
How do plant nutrients become available in the soil for plant growth?
They are released from minerals and organic matter to exchangeable sites
What dictates the nature of vegetation and types of animals in a particular area?
Properties of the soil
Apart from plants, which living organisms help in improving soil structure and fertility?
Micro-organisms, reptiles, and mammals
What is the function of soil as a natural resource?
Medium for plant growth
Which branch of soil science focuses on the study of soil nutrients and their availability for plant growth?
Soil Chemistry and Mineralogy
What does Soil Genesis, Morphology, and Classification primarily deal with?
Origin and structure of soils
In what way does soil act as a building material?
By forming the foundation for buildings
What aspect of soil does Soil Physics primarily focus on?
Physical forces acting on the soil
What is the main purpose of Soil Fertility in soil science?
Study of nutrient availability for plant growth
Test your knowledge on soil composition with this quiz. Identify the characteristics and properties of mineral and organic soils, including their impact on water and nutrient retention.
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