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(D) Soil plays a crucial role in plant growth and development through several functions:$(I)$ Soil acts as a reservoir of essential mineral elements r

Vedclass · Accepted Answer

$I, II, III$ and $IV$

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(D) Soil plays a crucial role in plant growth and development through several functions:$(I)$ Soil acts as a reservoir of essential mineral elements required by plants,which are absorbed by the roots.$(II)$ Soil provides minerals and also serves as a habitat for various microorganisms,including nitrogen-fixing bacteria like $Rhizobium$ and $Azotobacter$.$(III)$ Soil acts as a matrix that stabilizes the plant and provides a physical structure for root growth.$(IV)$ Soil has the capacity to hold water and provides necessary aeration (air) for root respiration.Since all the given statements $(I, II, III,$ and $IV)$ are correct,the correct option is $D$.

Select the correct statements regarding the role of soil:
$(I)$ Soil is a reservoir of essential elements.
$(II)$ Soil not only supplies minerals but also harbours nitrogen-fixing bacteria.
$(III)$ Soil acts as a matrix.
$(IV)$ Soil holds water and supplies air to the roots.

Similar Questions

Identify the function of soil.

What is the characteristic of good soil for plant growth?

The $O$ soil layer is rich in:

Give scientific reasons:
$(1)$ Hydroponic method is most suitable for plant culture.
$(2)$ Soil is known as reservoir of mineral elements.

Which one is the main source of minerals essential for man and other organisms?

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Select the correct statements regarding the role of soil:$(I)$ Soil is a reservoir of essential elements.$(II)$ Soil not only supplies minerals but also harbours nitrogen-fixing bacteria.$(III)$ Soil acts as a matrix.$(IV)$ Soil holds water and supplies air to the roots.