However, there are other, more serious causes of floaters, including infection, inflammation (uveitis), hemorrhaging, retinal tears, and injury to the eye. Floaters are more likely to develop as we age and are more common in people who are very nearsighted, have diabetes, or who have had a cataract operation.
Quick Answer. One cubic meter of soil weighs between 1.2 and 1.7 metric tonnes, or between 1,200 and 1,700 kilograms. These metric figures convert to between 2,645 and 3,747 pounds, or between 2.6 tons and 3.7 tons, per cubic meter. Loose topsoil is lighter, and compacted topsoil is heavier.
Bulk density is dependent on soil organic matter, soil texture, the density of soil mineral (sand, silt, and clay) and their packing arrangement. As a rule of thumb, most rocks have a density of 2.65 g/cm 3 so ideally, a silt loamsoil has 50% pore space a bulk anddensity of1.33 g/cm 3.or example, a soil with a bulk density of 1.3 versus a soil with a bulk density of 1.0 would result in a 30% error in organic matter and nutrient content if the samples are not adjusted for bulk density. Table 1. General relationship of soil bulk density to root growth based on soil texture.