Soil Layers and Composition
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Questions and Answers

What is the top layer of soil where we all stand called?

  • C horizon
  • A horizon
  • O horizon (correct)
  • B horizon

    • Which layer of soil is rich in minerals and contains metal salts?

  • C horizon
  • B horizon (correct)
  • O horizon
  • A horizon

    • What is the name of the scientists who study soil?

  • Meteorologists
  • Pedologists (correct)
  • Botanists
  • Geologists

    • Why is the topsoil dark brown, porous, and soft?

    <p>To hold enough water and air for seeds to germinate</p> Signup and view all the answers

    What layer of soil is known as parent material?

    <p>C horizon</p> Signup and view all the answers

    What does the O horizon consist of mostly?

    <p>Living and decomposed materials like leaves and plants</p> Signup and view all the answers

    What is the bottom layer of the soil profile called?

    <p>R horizon</p> Signup and view all the answers

    Why do soil scientists use letters to identify different horizons in the soil?

    <p>To classify and understand the soil layers</p> Signup and view all the answers

    How do rocks contribute to the formation of soil over time?

    <p>By breaking down into smaller pieces and mixing with organic matter</p> Signup and view all the answers

    What do soil scientists learn about from the soil profile?

    <p>Characteristics like color, texture, and thickness of the soil</p> Signup and view all the answers

    Why is soil important according to the text?

    <p>To provide a home for many animals</p> Signup and view all the answers

    What do pedologists study?

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

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