Which of the Following Is Not True About the Spatial

question 41

Multiple Choice

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 m² and deep enough (about 2 m 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.

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