Which of the following is not true about the spatial scales at which soil scientists study soils?
A)The smallest individual unit with which soils are described is called a soil pedon.
B)A pedon can be about 1 to 10 square meters and deep enough (about 2 meters deep)to distinguish soil horizons.
C)A pedon must be significantly different in properties from the pedons adjacent to it.
D)Boundaries between different soil types on the landscape can be gradational or fairly abrupt.

Question

Quizplus · Accepted Answer

A pedon only needs to represent a unique area of soil, but it does not necessarily need to be significantly different from adjacent pedons. Soil types and boundaries can vary in their degree of abruptness, so D is not necessarily false. A and B are both true statements about the scales at which soil scientists study soils.

Which of the Following Is Not True About the Spatial