Exploring the Principles of Soil Science

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Questions and Answers

Which of the following is NOT one of the functions of soil?

Biological habitat
Source of raw materials (correct)
Environmental interaction
Food and biomass production

What are the six key functions of soil?

Food production, water storage, genetic diversity, physical heritage, man-made structures, and environmental interaction
Biomass production, water filtration, genetic pool, raw material source, physical structures, and environmental regulation
Food production, environmental interaction, biological habitat, raw material source, physical structures, and cultural heritage (correct)
Food production, environmental interaction, biological habitat, raw material source, water regulation, and cultural heritage

What percentage of land on Earth is used for food and biomass production?

38% (correct)
10%
25%
50%

What are the factors necessary for plant growth?

Sunlight, water, and soil (D) Signup and view all the answers

What is soil composition?

The contents of soil (B) Signup and view all the answers

What is soil?

Soil is a natural body that consists of minerals, organic matter, water, air, and living organisms. Signup and view all the answers

What are the functions of soil?

The functions of soil include food and biomass production, environmental interaction, biological habitat, source of raw materials, physical and cultural heritage, and platform for man-made structures. Signup and view all the answers