Questions: What is the largest component of soil? - mineral matter - organic materials - air

The answer is the first one: mineral matter.

Explanation for each option:

1. Mineral matter: This is the largest component of soil. It typically makes up about 45% of the soil's volume. Mineral matter includes particles of sand, silt, and clay, which are derived from the weathering of rocks and minerals.

2. Organic materials: These make up a smaller portion of the soil, usually around 5%. Organic materials include decomposed plant and animal matter, which contribute to the soil's fertility and structure.

3. Air: Air occupies the pore spaces between soil particles and typically makes up about 25% of the soil's volume. It is essential for the respiration of plant roots and soil organisms.

Summary: The largest component of soil is mineral matter, which constitutes about 45% of the soil's volume.