GEOG 1111 STAN HOPKINS UGA CERTIFICATION SCRIPT
2026 QUESTIONS WITH SOLUTIONS GRADED A+
● Soils. Answer: Mixture of weathered rock particles organic matter water and air
● Soil Horizon. Answer: Distinct layer within a soil profile designated by letters
● O Horizon. Answer: Organic layer of decomposing plant and animal material
● A Horizon. Answer: Topsoil containing organic matter and nutrients supporting plant
growth
● B Horizon. Answer: Subsoil layer receiving materials leached from horizons above
● C Horizon. Answer: Partially weathered parent material below the solum
● R Horizon. Answer: Unweathered bedrock underlying the soil profile
● Soil Profile. Answer: Vertical cross-section showing all soil horizons
● Soil Texture. Answer: Relative proportions of sand silt and clay in a soil
● Sand. Answer: Coarse mineral particles 0.05 to 2 mm in diameter
● Silt. Answer: Medium mineral particles 0.002 to 0.05 mm in diameter
● Clay. Answer: Fine mineral particles smaller than 0.002 mm with high surface area
● Loam. Answer: Balanced soil texture with nearly equal proportions of sand silt and clay
● Soil Structure. Answer: Arrangement of soil particles into aggregates
● Soil Color. Answer: Indicator of organic matter content drainage and mineral composition
● Humus. Answer: Stable organic matter in soil resulting from decomposition
● Decomposition. Answer: Breakdown of organic matter by microorganisms into simpler
compounds
● Leaching. Answer: Downward movement of dissolved minerals through soil horizons
2026 QUESTIONS WITH SOLUTIONS GRADED A+
● Soils. Answer: Mixture of weathered rock particles organic matter water and air
● Soil Horizon. Answer: Distinct layer within a soil profile designated by letters
● O Horizon. Answer: Organic layer of decomposing plant and animal material
● A Horizon. Answer: Topsoil containing organic matter and nutrients supporting plant
growth
● B Horizon. Answer: Subsoil layer receiving materials leached from horizons above
● C Horizon. Answer: Partially weathered parent material below the solum
● R Horizon. Answer: Unweathered bedrock underlying the soil profile
● Soil Profile. Answer: Vertical cross-section showing all soil horizons
● Soil Texture. Answer: Relative proportions of sand silt and clay in a soil
● Sand. Answer: Coarse mineral particles 0.05 to 2 mm in diameter
● Silt. Answer: Medium mineral particles 0.002 to 0.05 mm in diameter
● Clay. Answer: Fine mineral particles smaller than 0.002 mm with high surface area
● Loam. Answer: Balanced soil texture with nearly equal proportions of sand silt and clay
● Soil Structure. Answer: Arrangement of soil particles into aggregates
● Soil Color. Answer: Indicator of organic matter content drainage and mineral composition
● Humus. Answer: Stable organic matter in soil resulting from decomposition
● Decomposition. Answer: Breakdown of organic matter by microorganisms into simpler
compounds
● Leaching. Answer: Downward movement of dissolved minerals through soil horizons
