What is density? please help i need it for a study guide

The density, of a substance is its mass per unit volume. The symbol most often used for density is ρ, although the Latin letter D can also be used. Mathematically, density is defined as mass divided by volume: {\displaystyle \rho ={\frac {m}{V}}} where ρ is the density, m is the mass, and V is the volume.

formula is=. m

p = _

v

p=density

m=mass

v=volume

hope it will help u

Explanation: Density measure show tightly packed particles are. So if something is more dense, the particles will be packed tightly together and if it's less dense, the particles will be spread out. You can also think of density as how heavy or light an object is for its size.

Density is measured by looking at an object's mass and volume.

To figure out an object's density, we divide its mass by its volume.

answer; ///i believe that the correct answer is (e); check first good

in 1859, charles darwin set out his theory of evolution by natural selection as an explanation for adaptation and speciation. he defined natural selection as the "principle by which each slight variation [of a trait], if useful, is preserved".