The O horizon is also called the organic horizon as it is a layer containing the highest amount of organic matter. It is reddish-brown in color. Thus the correct answer is option C.
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Q1
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With respect to soil profile consider the following statements:
1.Horizon A is the top most layer and is mostly made up of decayed organic matter.
2.Horizon B is the Zone of transition between Horizon A and Horizon C.
3.Horizon C is composed of loose parent material and demarcates the final stage in soil formation.
Select the correct answer from the following:
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Q2
Given figure represents the organic soil profiile, showing different layers/horizons of soil. Which of the folllowing statements regarding the soil profile are not true? (i)maximum roots oof plants are found n horiizon A. (ii) Maximum nutrients are present in horizon B. (iii) Horizon B contains party weathered rocks (iv) Horizon C contains roots of the pllants and mineral salts.
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Q3
What is horizon? Name the three horizons of the soil. [3 MARKS]
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Q4
Question 2
Availability of water and minerals in the soil for maximum absorption by roots is in the – (a) B-horizon (b) C-horizon (c) A-horizon (d) surface of soil