Title

Chemical, physical, and biological processes

Organic matter, humus, and leaching

Sand, silt, and clay (correct)

Earthworms, soil texture, and soil structure

The process of soil structure deteriorating

The process of water carrying nutrients away from the soil (correct)

The process of earthworms burrowing in the soil

The process of soil becoming more compact

By adding chemical fertilizers

By reducing the number of earthworms in the soil

By tilling the soil frequently

By adding organic matter to the soil (correct)