The % pore space in a soil having a bulk density of 1.16 mg m-3 and particle density of 2.62 mg m-3 is

Answer: Option C

The space between the soil particles in the pore space.
The formulas for calculating the pore space percentage $$\text{PS}=\left(1-\frac{\text{BD}}{\text{PD}}\right)\times 100$$
where PS is Pore Space, BD is Bulk Density and PD is Particle Density.
Putting all the values in the above formula
$$\text{PS}=\left(1-\frac{1.16}{2.62}\right)\times 100=0.557\times 100=55.7\%$$