What is the branch of science concerned with the formation, nature, ecology and classification of soils?

• A. Soil Science
• B. Geology
• C. Ecology
• D. Agronomy

Answer: (A)

Soils are studied as a distinct natural resource, with attention to how they form, what they’re made of, how organisms interact with them, and how we categorize and map them. This field brings together biology, chemistry, physics, and geography to explain pedogenesis (formation of soils), soil properties (texture, structure, chemistry, moisture), soil ecology (organisms and nutrient cycles within soil), and soil classification (typing soils into groups). That comprehensive focus is what defines soil science. Geology centers on rocks and Earth materials in general, ecology looks at interactions within ecosystems, and agronomy focuses on growing crops and managing fields—areas that use soils but don’t specialize in the full science of soils itself.