Density is defined as the division between the mass of an object and the volume occupied by that object. Its unit of measure in the International System is the kilogram per cubic meter (kg/m^3). Meanwhile, specific gravity is defined as the weight of an object divided over the weight of water at 4°C. The specific gravity is dimensionless and coincides numerically with the density.
the third one, measured or observed without changing the identity and composition of matter. because physical property does not under go any change but can be put back.
A hurricane can cause extreme damage to the biosphere and the geosphere. A hurricane can leave water standing therefore sinking itself into the geosphere. The biosphere can be permanently effected because it can kill, injure, and destroy the biosphere and what the biosphere creates (buildings, parks).