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Physical Geography: Soil Composition and Properties

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Physical Geography: Soil Composition and Properties

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Questions and Answers

What are the finest particles in soil composed of?

Colloids (correct)

Silts and sands

Grit and gravel

Clay and humus

Which of the following is NOT a characteristic of soil colloids?

Large particle size (correct)

High water-holding capacity

Chemical reactivity

High surface area

What is the primary function of colloids in soil water balance?

To regulate soil temperature

To facilitate soil aeration

To increase soil porosity

To retain water in the soil (correct)

Which of the following is a direct consequence of soil colloids' high surface area?

<p>Enhanced chemical reactivity</p> Signup and view all the answers

What is the term for the ability of soil to retain and release water?

<p>Soil water holding capacity</p> Signup and view all the answers

Physical Geography: Soil Composition and Properties

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Podcast

Questions and Answers

What are the finest particles in soil composed of?

Which of the following is NOT a characteristic of soil colloids?

What is the primary function of colloids in soil water balance?

Which of the following is a direct consequence of soil colloids' high surface area?

What is the term for the ability of soil to retain and release water?

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