Soil Composition and Layers Quiz

What is the aqueous portion of soil that contains dissolved matter from the chemical?

Which chemical is commonly used to acidify alkaline soil?

What term refers to the loss of soil by the action of water and wind?

Which process is associated with drought and loss of fertility?

What is the main factor causing devastating deterioration of soil through erosion and loss of nutrients?

What is the typical composition of productive soil?

Which component of soil contributes to the source of food for microorganisms?

What is the main function of Inorganic Colloids in soil?

Which organic component improves soil physical properties by exchanging nutrients?

What is the residue left when bacteria and fungi biodegrade plant material?

Which component influences the properties of soil and has a small percentage in those properties?

Soil Composition and Properties

Aqueous portion of soil containing dissolved matter is known as soil solution.
Common chemical used to acidify alkaline soil is sulfuric acid or elemental sulfur.
The term for the loss of soil by the action of water and wind is soil erosion.
Desertification refers to the process associated with drought and subsequent loss of soil fertility.
Deforestation is a primary factor causing significant soil deterioration through erosion and nutrient loss.

Productive Soil Characteristics

Typical composition of productive soil includes a balance of minerals, organic matter, air, and water.
Organic matter is crucial as it provides a source of food for microorganisms present in the soil.
The main function of inorganic colloids in soil is to enhance cation exchange capacity, allowing better nutrient retention.
Humus, the organic component that improves soil physical properties, plays a vital role in nutrient exchange and water retention.

Soil Microbial Relationships

The residue left after bacteria and fungi biodegrade plant material is referred to as humified organic matter or humus.
Soil properties are influenced by microorganisms, which, despite making up a small percentage of soil, significantly affect its characteristics and health.

Test your knowledge on the composition of soil including organic matter, inorganic matter, horizons, topsoil, transpiration, and inorganic colloids. Learn about the mixture of weathered rocks, minerals, decayed plants, and animal materials that make up soil.