What does the size of the inorganic matter in soils affect?

I am thinking size of inorganic matter here means the amount. The amount can have varied affects. Some can be positive as in higher phosphor amounts can cause positive effect so are nitrates for plant life. Harmful materials like Magnesium and cadmium can cause plants growing in such soils harmful for consumption.

All such matter is measured in PPM parts per million. Beyond certain safety levels such soil can be very dangerous to particularly the animal growth there. Sulphur can cause the soil to be acidic.