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?

    <p>Sunlight, water, and soil</p> Signup and view all the answers

    What is soil composition?

    <p>The contents of soil</p> Signup and view all the answers

    What is soil?

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

    What are the functions of soil?

    <p>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.</p> Signup and view all the answers

    How does soil contribute to food security?

    <p>Soil is necessary for plant growth and is used for food and biomass production, thus contributing to food security.</p> Signup and view all the answers

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

    <p>38% of land on Earth is used for food and biomass production.</p> Signup and view all the answers

    What are some environmental interactions of soil?

    <p>Soil acts as a regulator and purifier of water and can modify the environment.</p> Signup and view all the answers

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