Explain the difference between density dependent and density independent limiting factors.

Density-dependent factors often arise from biological phenomena, rather than from physical and chemical phenomena. Density-dependent factors are sometimes called regulating factors because of their potential for maintaining population density within a narrow range of values.
As for Density-independent means any force that affects the size of a population of living things regardless of the density of the population (the number of individuals per unit area). Density-independent factors often arise from physical and chemical (rather than biological) phenomena.