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)