NURSING ANM AND GNM

Detailed explanation-1: -In general, soil contains 40-45% inorganic matter, 5% organic matter, 25% water, and 25% air. In order to sustain plant life, the proper mix of air, water, minerals, and organic material is required. Humus, the organic material in soil, is composed of microorganisms (dead and alive) and decaying plants.

Detailed explanation-2: -There is more to soil than weathered rocks (minerals) and worms. In fact, a typical soil is comprised of 50% solids and 50% pore (empty) space. To break that down even further a typical mineral soil is comprised of 45% minerals, 5% organic matter, 25% air, and 25% water.

Detailed explanation-3: -The largest component of soil is the mineral portion, which makes up approximately 45% to 49% of the volume. Soil minerals are derived from two principal mineral types.

Detailed explanation-4: -The basic components of soil are minerals, organic matter, water and air. The typical soil consists of approximately 45% mineral, 5% organic matter, 20-30% water, and 20-30% air. These percentages are only generalizations at best. In reality, the soil is very complex and dynamic.

Detailed explanation-5: -A typical soil is about 50% solids (45% mineral and 5% organic matter), and 50% voids (or pores) of which half is occupied by water and half by gas.