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Soil

Description: Soil
Number of Questions: 10
Created by:
Tags: Soil
Attempted 0/10 Correct 0 Score 0

Which layer of Earth`s crust is known as soil?

  1. Deepest layer

  2. Upper layer

  3. Mid layer

  4. None of these


Correct Option: B
Explanation:

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Which of the following soils has/have the richest humus content?

  1. Sandy soil

  2. Clayey soil

  3. Loamy soil

  4. Both sandy soil and clayey soil


Correct Option: C
Explanation:

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Which of the following soils is most favourable for plant growth?

  1. Sandy

  2. Clay

  3. Loamy soil

  4. Gravel


Correct Option: C
Explanation:

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What is the disadvantage of the sandy soil?

  1. It cannot hold much water.

  2. It provides air to the growing plant species.

  3. It can be plunged very easily.

  4. Its fertility can be increased.


Correct Option: A
Explanation:

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Which horizon of soil is called bed rock?

  1. C – horizon

  2. A – horizon

  3. B – horizon

  4. D – horizon


Correct Option: D
Explanation:

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Which of the following is a biotic component that affects the fertility of soil?

  1. pH

  2. Air content

  3. Fertilisers

  4. Plant


Correct Option: D
Explanation:

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Which of the following is the most fertile layer of soil?

  1. Topsoil

  2. Subsoil

  3. Bedrock

  4. Parent rock


Correct Option: A
Explanation:

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The downward movement of water through soil due to gravitational force is called

  1. absorption

  2. percolation

  3. moisture

  4. osmosis


Correct Option: B
Explanation:

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What should be the nature of soil?

  1. Acidic

  2. Basic

  3. Neutral

  4. Depends on the nature of vegetation


Correct Option: C
Explanation:

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Which of the following correctly defines the term soil erosion?

  1. Absorption of large amount of water by soil

  2. Removal of top layer of soil

  3. Adding fertilisers to the soil

  4. Infertility of soil


Correct Option: B
Explanation:

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