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17 Questions

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Soil Layers and Importance

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Questions and Answers

Which layer of the soil is rich in minerals washed down from the topsoil?

The topsoil layer

The parent rock layer

The organic layer

The subsoil layer (correct)

What is the term used to describe the different layers of soil?

Soil horizons (correct)

Soil profiles

Soil formations

Soil structures

What is the primary component of the organic layer of soil?

Old plant roots

Decaying rocks

Tiny living organisms

Dark, fertile humus (correct)

Why is the subsoil layer not as good for plants as the topsoil layer?

It is too hard and rocky Signup and view all the answers

How long does it take for soil to form in the parent rock layer?

A long period of time Signup and view all the answers

What is the role of minerals in soil?

They provide important nutrients for plants Signup and view all the answers

What do living organisms in soil contribute to?

The soil's health and fertility Signup and view all the answers

What is the purpose of air in soil?

To allow plants to breathe Signup and view all the answers

What happens to organic matter as it breaks down in soil?

It enriches the soil with nutrients Signup and view all the answers

What is the result of soil erosion?

The soil's health and environment are affected Signup and view all the answers

What are the natural forces that contribute to soil erosion?

Wind, water, and human activities Signup and view all the answers

What is the main cause of wind erosion?

Strong winds blowing away loose soil particles Signup and view all the answers

What can happen to the soil when it is cleared of vegetation or the natural landscape is changed?

It becomes more vulnerable to erosion by wind or water Signup and view all the answers

What is a consequence of soil erosion on the environment?

Reduced crop productivity Signup and view all the answers

What is the term used to describe the process of productive land becoming barren and desert-like?

Desertification Signup and view all the answers

What is carried away by water or wind erosion that can harm aquatic ecosystems and contaminate drinking water sources?

Eroded soil along with chemicals it might carry Signup and view all the answers

Why is it important to prevent soil erosion?

To prevent problems like reduced soil fertility, water pollution, and changes in the landscape Signup and view all the answers