Section 1 Soil three phases Constitution Soil density and bulk density (- Soil density (or Particle density Soil density is the density of the solid soil particles only; the measurement does not include water weight or pore(air)space. The dominant soil minerals- quartz, feldspars, micas, and clay minerals
Introduction: What Is Mineral? Mineral Naturally formed, inorganic, solid material with a specific chemical composition and a characteristic crystalline structure. Rock Naturally formed, coherent mass of one or more minerals, sometimes including organic debris
Biological Features Structure and chemical composition Developmental cycle Staining properties Antigens Growth and metabolism Characteristics of host-parasite- relationship Classification