A Trivia Quiz For Soil Enthusiasts!

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Soil Science Quizzes & Trivia

A Soil test can be defined as determining the fertility or pH value of soil, its composition and by tracing the elements present in a soil. For good crop production and improved quality, soil testing helps us to decide the usage of fertilizers or other elements. This quiz has been made to test the basic knowledge of students about soil testing and its elements. So, let's try out the quiz. All the best!


Questions and Answers
  • 1. 

    What type of soil is best for growing plants?

    • A.

      Sand

    • B.

      Bedrock

    • C.

      Loam

    • D.

      Topsoil

    Correct Answer
    D. Topsoil
    Explanation
    Topsoil is the best type of soil for growing plants because it is rich in organic matter, nutrients, and microorganisms. It has a balanced texture that allows for proper drainage and water retention, ensuring that plants receive the right amount of moisture. Topsoil also provides a suitable environment for roots to grow and spread, promoting healthy plant development. It is often found on the uppermost layer of the soil and is the result of years of natural processes, making it ideal for supporting plant growth.

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  • 2. 

    What can farmers do to change the soil?

    • A.

      Grow plants

    • B.

      Add fertilizer

    • C.

      Dig holes

    • D.

      Remove plants

    Correct Answer
    B. Add fertilizer
    Explanation
    Farmers can change the soil by adding fertilizer. Fertilizers contain essential nutrients such as nitrogen, phosphorus, and potassium, which are necessary for plant growth. When farmers add fertilizer to the soil, it enriches the nutrient content, improving the soil's fertility. This helps plants to grow healthier and increases their yield. Fertilizers also enhance the soil's ability to retain moisture and improve its structure, promoting better root development. Overall, adding fertilizer is a common practice among farmers to improve the quality and productivity of the soil.

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  • 3. 

    The soil is made up of four main ingredients. Choose the correct list of ingredients

    • A.

      Air, water, tiny pieces of rock, and manure

    • B.

      Tiny pieces of rock, humus, air and sand

    • C.

      Humus, or dead plant material, clay, water, and salts

    • D.

      Tiny pieces of rock, air, water, and humus or dead plant material

    Correct Answer
    D. Tiny pieces of rock, air, water, and humus or dead plant material
    Explanation
    The correct answer is "Tiny pieces of rock, air, water, and humus or dead plant material." This is because soil is composed of mineral particles (tiny pieces of rock), air, water, and organic matter (humus or dead plant material). These ingredients provide the necessary nutrients and support for plant growth.

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  • 4. 

    Choose three organisms that live in the soil

    • A.

      Worms

    • B.

      Moles

    • C.

      Bacteria

    • D.

      Cats

    Correct Answer(s)
    A. Worms
    B. Moles
    C. Bacteria
    Explanation
    The correct answer is Worms, Moles, and Bacteria. These three organisms are commonly found in soil ecosystems. Worms play a vital role in soil health by breaking down organic matter and improving soil structure. Moles are burrowing mammals that live underground and contribute to soil aeration. Bacteria are microorganisms that inhabit soil and are involved in nutrient cycling and decomposition processes. Cats, on the other hand, are not typically considered soil-dwelling organisms.

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  • 5. 

    This type of soil dries out quickly after a rainstorm.

    • A.

      Clay

    • B.

      Loam

    • C.

      Sand

    • D.

      None

    Correct Answer
    C. Sand
    Explanation
    Sand is the correct answer because it has large particles with plenty of space between them. This allows water to drain quickly through the soil, preventing it from being retained for long periods. As a result, sand dries out quickly after a rainstorm. Clay, on the other hand, has small particles that are tightly packed, causing it to retain water for longer periods and dry out more slowly. Loam is a mixture of sand, silt, and clay, which can hold water but also drain well.

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  • 6. 

    This type of soil can become as hard as stone when it dries out

    • A.

      Clay

    • B.

       Loam

    • C.

      Sand

    • D.

      None

    Correct Answer
    A. Clay
    Explanation
    Clay soil has a high percentage of fine particles, which allows it to retain water and become sticky when wet. However, when clay soil dries out, it shrinks and compacts, resulting in a hard and compacted surface that can be as hard as stone. This is because the small particles in clay soil are tightly packed together, leaving little space for air or water to penetrate. As a result, clay soil becomes hard and difficult to work with when it dries out.

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  • 7. 

    This soil ingredient is made up of decayed plants and animals

    • A.

      Air

    • B.

      Humus

    • C.

      Minerals

    • D.

      Water

    Correct Answer
    B. Humus
    Explanation
    Humus is the correct answer because it is a soil ingredient that is formed by the decomposition of organic matter such as plants and animals. It is a dark, organic material that is rich in nutrients and helps to improve soil fertility. Humus also enhances the soil's ability to retain moisture and promotes the growth of beneficial microorganisms.

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  • 8. 

    What is soil erosion?

    • A.

      The way soil is formed

    • B.

      A process that moves soil by wind and water away from where it is needed

    • C.

      Another name for the greenhouse effect

    • D.

      Another name for soil pollution

    Correct Answer
    B. A process that moves soil by wind and water away from where it is needed
    Explanation
    Soil erosion is the process by which soil is moved and carried away by wind and water from its original location. This can occur due to natural factors such as wind and rain, as well as human activities like deforestation and improper land management. Soil erosion can have detrimental effects on agriculture, as it leads to loss of fertile topsoil and reduces the ability of the land to support plant growth. Therefore, it is important to implement measures to prevent and control soil erosion in order to maintain soil quality and productivity.

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  • 9. 

    What are the three main layers in a soil profile?

    • A.

      Minerals, humus, and air

    • B.

      Topsoil, subsoil, and parent material

    • C.

      Loam, sand, and clay

    • D.

      None

    Correct Answer
    B. Topsoil, subsoil, and parent material
    Explanation
    The three main layers in a soil profile are topsoil, subsoil, and parent material. Topsoil is the uppermost layer of soil that contains the highest amount of organic matter and nutrients. Subsoil is the layer beneath the topsoil, which is less fertile and contains less organic matter. Parent material is the layer at the bottom, which is the source of the soil and is made up of weathered rocks and minerals. These three layers play a crucial role in determining the fertility and composition of the soil.

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  • 10. 

    The soil is formed by the breaking up of rocks into tiny pieces, which is called weathering. What are three things that can cause this weathering?

    • A.

      Wind

    • B.

      Water

    • C.

      Heating and cooling of the rock

    • D.

      Lightning

    Correct Answer(s)
    A. Wind
    B. Water
    C. Heating and cooling of the rock
    Explanation
    Weathering is the process of breaking down rocks into smaller pieces. Wind can cause weathering by carrying small particles and abrasive materials that can erode the surface of rocks. Water can cause weathering through processes like freeze-thaw, where water seeps into cracks in rocks, freezes, and expands, causing the rock to break apart. Heating and cooling of the rock can cause weathering because when rocks are exposed to extreme temperatures, they expand and contract, leading to cracks and eventual breakdown. Lightning, on the other hand, does not directly cause weathering as it is a sudden discharge of electricity in the atmosphere.

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Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Mar 21, 2022
    Quiz Edited by
    ProProfs Editorial Team
  • Dec 31, 2007
    Quiz Created by
    Tcush
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