Soil Composition and Processes

The video tutorial covers the basics of soil science, including its formation, classification, and profile development. It explains the processes of weathering and soil profile development, detailing the different soil horizons. The classification of soil into residual and transported types is discussed, along with the factors influencing soil transportation. The video also addresses soil erosion, its causes, and the impact of environmental factors. Key terms like pedology, edaphology, and various soil types are defined to provide a comprehensive understanding of soil science.

What is the study of soil's interaction with climate and environment called?

• Ecology

• Geology

• Pathology

• Adaptology

Which process involves the breakdown of rocks into smaller fragments?

• Chemical decomposition

• Physical disintegration

• Erosion

• Sedimentation

Which process involves the release of soluble materials and synthesis of new minerals?

• Sedimentation

• Erosion

• Chemical decomposition

• Physical disintegration

What type of soil is formed when soil particles are moved by gravity?

• Illumine soil

• Glacial soil

• Collovium soil

• Alluvium soil

What is the term for soil particles transported by wind?

• Collovium soil

• Illumine soil

• Alluvium soil

• Glacial soil

Which horizon is known as the topsoil and is rich in humus?

• B horizon

• C horizon

• A horizon

• O horizon

Which horizon is only present in old soils?

• C horizon

• O horizon

• A horizon

• E horizon

Which horizon is referred to as the parent material?

• C horizon

• B horizon

• O horizon

• A horizon

What is the main cause of soil erosion in today's time?

• Rainfall

• Wind speed

• Vegetation destruction

• Extreme temperatures

What is the term for the gaseous mixture present in soil pores?

• Silt

• Clay

• Humus

• Soil air