The smallest volume that can be called 'a soil' is

A. Pedon

B. Pans

C. Radon

D. Pod

Answer: Option A

Solution(By Examveda Team)

Pedon is the smallest unit or volume of soil that contains all the soil horizons of a particular soil type. Soils as unions of modules known as pedons. Soils are encountered on the landscape as groups of similar pedons, called polypedons, that contain sufficient area to qualify as a taxonomic unit.