Answer:
Density independent factor
Step-by-step explanation:
Drought is a natural phenomenon or process which occurs when there is inadequate supply of water.
This being a physical process depends on parameter such as rainfall in cm, area of the land/catchment, climatic conditions, total population etc.
Drought has no relation with the density based parameters and also it is an abiotic factor that depends only on geophysical process.
Thus, it is density-dependent factor