Final answer:
The two components of the solid portions of the soil are sand and clay.
Step-by-step explanation:
The two components of the solid portions of the soil are sand and clay.
Soil particles that are 0.1 to 2 mm in diameter are sand, while soil particles between 0.002 and 0.1 mm are called silt. Even smaller particles, less than 0.002 mm in diameter, are called clay.
Therefore, Option 1: Sand and Silt, is incorrect. Option 2: Sand and Water, is incorrect as water is not a solid component of the soil, but a component of the water and air phase. Option 3: Clay and Water, is also incorrect as water is not a solid component of the soil. Option 4: Organic Matter and Air, is incorrect as organic matter is part of the organic material of the soil and air is part of the water and air phase.