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Soil Basic Concepts 1.1 Quiz

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Questions and Answers

What is the primary influence on soil fertility?

Silt content
Gravel content
Sand content
Clay content (correct)

Which soil content generally leads to highly fertile soil?

High sand content
High silt content
High clay content (correct)
High gravel content

What is the smallest unit of land surface that can be used to study the characteristic soil profile?

Land plot
Pedon (correct)
Aggregates
Soil horizon

What term is used to describe the process by which soil stores and regulates the transformation of plant nutrients and elements in the ecosystem?

Nutrient recycling (B) Signup and view all the answers

Which process governs the transformation of nutrients into forms available for plant absorption in the ecosystem?

Decomposition of organic matter (C) Signup and view all the answers

What liberates elements from complex materials during the decomposition of organic matter?

Soil microorganisms (C) Signup and view all the answers

What is the pivot of all nutrient transformations in soil?

Decomposition of organic matter (A) Signup and view all the answers

During the decomposition of organic matter, what generally happens to complex compounds?

They are converted into simpler compounds (D) Signup and view all the answers

Which activity drives elements back into rotation during nutrient transformations?

Microbial decomposition (A) Signup and view all the answers

What role does soil play in nutrient transformations with respect to plant absorption?

Soil is a nutrient liberator (B) Signup and view all the answers

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